Search: Trigonometry (Law of Sine)

Number of results: 11,903

Trigonometry
What is your answer? Did you use the sine law?
Monday, March 18, 2013 at 7:32pm by MathMate

math
Use cosines law for SSS and SAS use sine law for others a) cosine law b) sine law
Thursday, March 25, 2010 at 11:05am by Reiny

Trigonometry
I think I did use the sine law but I am just not sure how to get a+b?
Monday, March 18, 2013 at 7:32pm by Joe

trigonometry
you are welcome little trick... when finding the angles in a triangle given the 3 sides, you will of course have to use the cosine law to find one angle, then you can use the sine law to find a second angle. Always find the largest angle first using the cosine law. That way if...
Monday, March 19, 2012 at 7:29am by Reiny

Trigonometry
I am curious how you find the probability of divisibility of palindromes by 4 using the sine law. Can you kindly show your work?
Monday, March 18, 2013 at 7:32pm by MathMate

Summer School Calculus
Add the following vectors , 7m/s [N30E] and 2m/s [S17E], using trigonometry. Once you draw these out into diagrams, you use the triangle law yes? How do you find the angles to use in the cosine and sine law? A little confused, thanks for the help.
Saturday, June 28, 2008 at 8:31pm by Derek

trigonometry
Use logarithms and the law of tangents to solve the triangle ABC, given that a=21.46 ft, b=46.28 ft, and C=32°28'30" I have to use logarithms and law of tangents . and then provide the check. which says law of sine or mollweids equation. I can't us the cosine ...
Saturday, February 26, 2011 at 6:21pm by Anon

trigonometry ?
A cottage under construction is to be 15.6m wide. The two sides of the roof are to be supported by equal rafters that meet at a 52 degree angle. Determine the length of the rafters to the nearest cm using a) the cosine law b) the sine law I am not understanding this question ...
Tuesday, March 16, 2010 at 11:51am by deborah

Trigonometry (Law of Sine)
I see no "figure below", we cannot show diagrams in this forum. You will have to describe the figure.
Saturday, February 25, 2012 at 4:09am by Reiny

Trigonometry
By the cosine law 6.17^2 = 3.02^2 + 5.25^2 - 2(3.02)(5.25)cosA cosA = -.043279 angle A = 92.48 degrees I would then use the Sine Law to find the second angle, and then the "sum of the angles in a triangle" theorem to find the third one.
Wednesday, December 9, 2009 at 2:50pm by Reiny

Trigonometry
Cos D= -3/4. if the sine of the angle is positive, find the sine of the angle and determine the quadrant. Can anyone tell me the steps. I need to learn this.
Thursday, February 18, 2010 at 7:02pm by Laly

trigonometry
I made a sketch and got a triangle ABC where AB = 20 BC = 50 and angle B = 70° by the cosine law: AC^2 = 20^2+50^2-2(20)(50)cos70 = 2215.959... AB =47.07 m Using the sine law, find angle A
Monday, April 23, 2012 at 10:14pm by Reiny

trigonometry repost .
As I noted in my previous reply to the same question, I fail to understand why you are doing such elaborate steps to solve such a rather simple question. I always understood, that "solving" a triangle involved finding any missing sides or angles. The 3 sides were ...
Tuesday, March 1, 2011 at 6:18am by Reiny

trigonometry
where is the sine negative? Isn't it in quadrants III and IV ? The sine of which angle is 1/2 ? Isn't it 30º or pi/6 radians so arcsin (-1/2) is 210º or 330º which would be 7pi/6 or 11pi/6 radians
Tuesday, May 19, 2009 at 8:06pm by Reiny

CALCULUS
How do I do this: add the following vectors , 7m/s [N30E] and 2m/s [S17E] I know that you must use trigonometry and break stuff up into components and use sine and cosine law; just not sure how. Thanks!
Saturday, June 28, 2008 at 3:31pm by Casey

Math (Trigonometry)
Did you make a diagram? I see a triangle with sides 2 and 3 and the contained angle as 135º, let the side opposite that angle be x I see the cosine law. x^2 = 2^2 + 3^2 - 2(2)(3)cos 135 = 4 + 9 - 12(-√3/2) = .... x = √.... then use the sine law to find...
Monday, April 13, 2009 at 7:10pm by Reiny

Trig Help Please!!!
Just noticed that I was actually finding b, not c (c was given) No harm done here. let's find angle A by the sine law sinA/a = sinB/b sinA/95 = sin 38/85.335 sinA = .685... A = 43.27 then angle C = 180-38-43.27 = 97.73° or appr 98° The problem with the sine law is ...
Thursday, April 5, 2012 at 11:43pm by Reiny

Summer School Calculus
Another one for you :P, add these two vectors using trigonometry (again)... 9N[S2W] and 11N[N31W]...Again, I am confused about the angles, I am not sure what value I should use for the cosine and sine law. THANKS AGAIN!!
Sunday, June 29, 2008 at 7:03pm by Derek

Algebra II
by Sine Law : sinB/b = sinA/a sinB/10 = sin40/14 sinB = .459134 angle B = 27.33º or 180-27.33º so B is either 27.33 or 152.67º draw the two possible triangles, and use the sine law again to find c.
Thursday, May 15, 2008 at 7:50pm by Reiny

Trig
To solve a triangle you must be given 3 independent bits of information. 2 sides and 1 angle 3 sides 1 side and 2 angles (note 3 angles is not "3 independent pieces of information, since if you know 2 angles, you automatically know the third) general simple rule: If you ...
Friday, March 7, 2008 at 1:38pm by Reiny

Trigonometry
Evaluate the sine, cosine and tangent of -7pi/3. I got 1/2, sq. root of 3/2 and sq. root of three. My book says the sine and the tangent are negative, but I don't know why? Can you explain the rule??
Sunday, December 20, 2009 at 8:22pm by Sam

PreCalc (Sine)
I'm having trouble understanding a sine concept. For instance, I know that the sine of 15 is .25881. Likewise, the sine of 165 is also .25881. How can I find other values of sine that also equal .25881? Thank you very much.
Thursday, October 25, 2007 at 10:36pm by Jim

math
Trigonometry is the branch of mathematics that deals with the solution of triangles through the use of the trigonometric functions sine, cosine, tangent and their reciprocals. The trig function values derive from the ratios of the "x" and "y" values of a ...
Monday, March 3, 2008 at 9:37am by tchrwill

Trigonometry
There is no such thing. No angle can have a sine greater than 1. arcsin pi/2 would have to have a sine of pi/2. The sin of pi/2 is zero.
Sunday, November 8, 2009 at 11:12pm by drwls

Math
a) is the sine of 285 b) is the sine of 15, 165 c) is the sine of 75, 105 d) is the sine of -15, 195 check my thinking.
Monday, June 1, 2009 at 8:26pm by bobpursley

trigonometry
Construct the trapezoid ABCD ,where AB || CD AB = 12 and CD = 22 angle C=65 and angle D = 40 Draw AE || BC where E is on CD So now ABCE is a parallelogram, and CE = 12 which makes ED = 10 Now look at triangle AED, by corresponding angles angle AED = 65°, angle D = 40 ...
Friday, February 10, 2012 at 6:18am by Reiny

trigonometry
make a sketch, label the side across from the 33º angle as x, and the side across the 62º as y. Using the sine law x/sin33 = 25/sin85 do y the same way. draw a perpendicular from the boat to shore, giving you a right-angled triangle, call it h sin 62 = h/x h = xsin62...
Monday, March 8, 2010 at 6:08pm by Reiny

Geometry
Looks like the ambiguous case of the sine law. let the angle opposite the 90 be Ø sinØ/90 = sin 59/80 sinØ =.9643 Ø = 74.6 or 105.4° so the third angle is 46.4° or 15.6° now use the sine law for each case to find the two different ...
Wednesday, January 26, 2011 at 7:38pm by Reiny

gr10 science
n = sine (<i) / sine (<R) n = sine (30) / sine (15) solve for n
Tuesday, June 7, 2011 at 8:28pm by Anonymous

trigonometry
If you know the sine of a number, how do you find its cosine?
Sunday, December 16, 2012 at 5:06pm by rachel

Trigonometry (Law of Sine)
Triangulation can be used to find the location of an object by measuring the angles to the object from two points at the end of a baseline. Two lookouts 20 miles apart on the coast spot a ship at sea. Using the figure below find the distance, d, the ship is from shore to the ...
Saturday, February 25, 2012 at 4:04am by Alianne

Trigonometry (Law of Sine)
Fire towers A and B are located 10 miles apart. They use the direction of the other tower as 0°. Rangers at fire tower A spots a fire at 42°, and rangers at fire tower B spot the same fire at 64°. How far from tower A is the fire to the nearest tenth of a mile?
Saturday, February 25, 2012 at 4:03am by Alianne

trigonometry
in triangle abc, angle c is a right angle, AC=8,Bc=15 and AB=17 a.find Sine a b.Find cosine A c.Find Sine B d. Find COsine B E. the measure of angel A f. the measure of angela b Can u tell me the answers and how to do it. Because im in 8th grade
Tuesday, May 18, 2010 at 5:58pm by james

Trigonometry
I had to find the sine, cosine and tangent of -150 degrees. I got - sq. root of 3/2, -1/2, and - sq. root of 3/3. But my book has -1/2 as the sine, and -sq. root of 3/3 as the cosine. Why is this? I thought that it was thirty degrees away from the axis, so I should use pi/3.
Sunday, December 20, 2009 at 8:25pm by Sam

Trigonometry (Law of Sine)
Fire towers A and B are located 10 miles apart. They use the direction of the other tower as 0°. Rangers at fire tower A spots a fire at 42°, and rangers at fire tower B spot the same fire at 64°. How far from tower A is the fire to the nearest tenth of a mile? ...
Saturday, February 25, 2012 at 4:09am by Alianne

trigonometry
But how do I know where cosine (or tangent and sine) are positive? I don't understand. Thanks for the help, btw.
Tuesday, May 19, 2009 at 8:06pm by Matt

math-grade 10
I used both the sine law and the cosine law in the solution that I provided for you in your earlier post of this same question. I thought the steps that I showed you were about as detailed as I could in this format.
Friday, June 12, 2009 at 9:31pm by Reiny

trigonometry
How to verify this identity: 1+ tan x (over) = secant x sine x + cos x
Wednesday, February 24, 2010 at 10:02pm by Debi

Calculus
by Cosine Law c^2 = 11^2+5^2 - 2(11)(5)cos110º =183.622 c= 13.55 Now you can use the Sine Law to find the other angles
Tuesday, November 20, 2007 at 9:51am by Reiny

trigonometry ASAP!
Make a sketch Label the position of the plane as P label the point directly below P as Q Label the first observation point A and the second observarion point as B angle A = 37° angle PBQ = 65° AB = 800 You can easily see that angle APB= 28° In triangle ABP you can ...
Tuesday, April 3, 2012 at 6:24pm by Reiny

Trigonometry (Law of Sine)
Your wording of the question is confusing, but I think I see a triangel FAB, where AB = 10 angle A = 42° and angle B = 64° then angle F = 180-64-42 = 74° FA/sin64 = 10/sin74 FA = 10sin64/sin74 = appr 9.4 miles
Saturday, February 25, 2012 at 4:03am by Reiny

Trigonometry
Law of sines: a/SinA = b/SinB solve for B from that. Then solve for C knowing A and B, and the sum of angles is 180 Then, find c with the law of sines, or law of cosines.
Sunday, January 24, 2010 at 7:19pm by bobpursley

Trigonometry
You are obviously looking at or have made a diagram. let the top of the falls be point C In triangle ABC B = 52.9° A = 110.7° , the supplement of 69.3 then angle C = 16.4° by the Sine law AC/sin52.9 = 1000/sin16.4 AC = 2824.8913... now in the right-angled triangle ...
Saturday, June 16, 2012 at 10:39pm by Reiny

correction - trigonometry
go with drwls solution, I was thinking sine mine is wrong at the end
Sunday, March 28, 2010 at 2:54am by Reiny

trigonometry (repost) Mathmate
I want to start by saying thank you . You have no idea how much u have helped me understand logarithms, even better then the books i have (it poorly explains the subject of trigonometry let alone logarithms and antilog). Your last explanation was very clear and i even ...
Saturday, February 26, 2011 at 3:37am by Anon

Pre-Calc
When all 3 sides are given, we MUST use the Cosine Law. I always find the largest angle, which will be opposite the largest side. The calculator will give me the correct angle directly without any further adjustment. The problem arises using the Sine Law, where one of the ...
Thursday, December 8, 2011 at 7:25pm by Reiny

Algebra 2
Neither. Sine can never exceed 1. If the sine is 0.8, the cosine is 0.6. (Think of a 3,4,5 right triangle, or use cos^2 = 1 - sin^2) The sine is 2x is 2 sinx cosx. In this case, that is 2*(3/5)(4/5)= 24/25
Friday, May 28, 2010 at 9:23am by drwls

Algebra II/ Trig
When all you are given are the three sides, you have no choice, You HAVE TO use the Cosine Law to find one of the angles. Then you can use the Sine Law to find the second angle. After that the third angle is easy. When using the Sine Law to find an angle, one has to be careful...
Saturday, March 14, 2009 at 11:48am by Reiny

CALCULUS
If you want the magnitude of the resultant, use the law of cosines. Drawing a figure will help. The law of sines can get you the sine of any angle of the triangle formed by the two velocity vectors and the resultant. it's easier using components, but the answer will be the...
Saturday, June 28, 2008 at 3:31pm by drwls

Math - Trigonometry
At 45º both the sine and cosine have the same value, namely 1/√2 so the answer is 1
Wednesday, April 16, 2008 at 4:02pm by Reiny

Sine, cosine law
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Tuesday, July 20, 2010 at 6:44pm by Anonymous

Trig-sine, cosine law
Yup, I made a mistake, I didn't mind my P's and Q's I now have the fire at F, and PQ=20, FQ=15 and angle QPF=25° so we have the ambiguous case of the sine law. let PF = x first we have to find angle F sinF/20 = sin25/15 sinF = .5635 angle F = 34.3° , then ...
Tuesday, July 20, 2010 at 7:55pm by Reiny

trig
treat sine theta as x, and it get's really easy! x^2+2x+1=0 Factor, (x+1)(x+1)=0 now replace sine theta: (sine theta + 1)^2=0 theta=sine^-1(0) theta=0 Cheers, Houdini
Wednesday, April 7, 2010 at 12:36pm by Houdini

Trigonometry
Make a sketch. I have a triangle ABC, where BC is the ground, AC is the tower. Angle B = 60°, angle C = 84.5°, making angle A = 35.5° by Sine Law: BC/sin 35.5° = 179/sin 60° I get BC = 120.026 So the shadow of the tower is 120 ft long
Tuesday, August 30, 2011 at 10:55pm by Reiny

Geometry
first off, it's inverse sine "of", not "times" you want the angle whose sine is 1.5 and the sine never gets greater than 1. So, it makes no sense to ask for an angle x with sin(x) = 1.5
Monday, March 26, 2012 at 5:27pm by Steve

Grade 11 Math
Never attempt a question like this without a sketch or diagram. I labeled the position of the fire as F and by some simple adding/subtracting of angles, I had angle A = 45° and angle B = 95°, thus angle F = 40° , and AB = 20.3 By sine law: AF/sin95 = 20.3/sin40 AF...
Tuesday, May 22, 2012 at 6:41pm by Reiny

physics
If you are taking calc2, then you must know what sine and cosine functions, etc. are. What I am calling trigonometry you may have been taught as "precalc"
Sunday, August 15, 2010 at 9:35am by drwls

math
Find a triangle within the trapezoid for which you know two sides and an angle. Then use the trigonometry laws of sine and cosine.
Friday, April 10, 2009 at 10:11pm by drwls

Trigonometry (Law of Sine)
see http://www.jiskha.com/display.cgi?id=1330160622
Saturday, February 25, 2012 at 4:09am by Reiny

Trig
Both answers are correct. sine is positive in the first and second quadrant, and the sine of an angle equals the sine of its supplementary angle. 180.00 - 53.13 = 126.87
Thursday, April 15, 2010 at 1:10am by drwls

Sine, cosine law
Srry but how did u get 145?
Tuesday, July 20, 2010 at 9:03pm by Nada

Trig-sine, cosine law
Thank you so much:)
Tuesday, July 20, 2010 at 7:55pm by Nada

trigonometry
If sine of an angle is ¼ and cosine of an angle is 15/4.. find cosecant.
Saturday, March 7, 2009 at 8:45pm by Amber

math
could someone please help.... a cottage under construction is to be 35.6m wide. the two sides of the roof are to be supported by equal rafters that meet at a 52 degree angle. determine the length of the rafters to the nearest cm using the cosine law and the sine law.
Tuesday, March 23, 2010 at 5:13pm by deborah

trigonometry
The main part of the question is to make a decent diagram. We can find AC using Pythagoras and I found it to be 264.00 km Also using right-angled trig, AC makes an angle of 12.246° which makes angle PAC = 52.587° In triangle PAC , we have AP = 120 , AC = 264 adn angle ...
Saturday, January 5, 2013 at 11:51pm by Reiny

trigonometry
okay so in my review packet under the "calculator" section it says law of sines and law of cosines. i dont know what that means. i wikipedia-ed it but i dont understand what they are saying. Please help!
Thursday, January 22, 2009 at 8:50pm by Spencer

Trig-sine, cosine law
Now this one is easy to see and draw. direct application of cosine law, x^2 = 20^2 + 15^2 - 2(20)(15)cos 25° = 81.21533 x = 9.01 km
Tuesday, July 20, 2010 at 7:55pm by Reiny

Trigonometry
for the sin(A±B) and cos(a±B) for the Sine is goes sinAcosB ± cosAsinB and for Cosine is goes cosAcosB ... sinAsinB for the Sine, the signs stay the same, that is, sin(A+B) = sinAcosB + cosAsinB and sin(A-B) = sinAcosB - cosAsinB In the cosine formula, the...
Monday, July 21, 2008 at 7:07am by Reiny

geometry
Have you not learned the Sine Law. It looks like a direct application of that.
Monday, April 12, 2010 at 7:17pm by Reiny

Trigonometry/ Please Help
Given sine of alpha=2/3 and cosine of alpha is less than zero, find the exact value of the other five trigonometric functions.
Thursday, January 13, 2011 at 5:30pm by CJ

Trigonometry
If the sine of an angle is 3/5 and the angle is not in quadrant 1, what are the remaining five trigonometric values for that angle?
Sunday, January 24, 2010 at 7:19pm by Dan

Precalculus
A good hint is to always draw the parallelogram first with the resultant being the diagonal. That way you can use alternate angles (that is where I messed up) The diagonal (resultant) will then give you the triangles. Depending on the information given, you would then use ...
Tuesday, August 9, 2011 at 2:01pm by Reiny

trigonometry (repost) Mathmate
I have looked at the question, and confirm that there was an error in the previous calculations using the law of tangents. Following are results using the sine rule: Given: a = 21.46, b = 46.28, C = 32-28-30 The cosine rule gives: c = sqrt(a^2+b^2-2*a*b*cos(C))=30.440833 The ...
Saturday, February 26, 2011 at 3:37am by MathMate

Trigonometry
My diagram has the lighthouse as PQ with P at the top and PQ = 350 My ships are at A and B, angle at A = 4° and the angle at B = 6.5° In the right angled triangle BQP sin 6.5 = 350/BP BP = 350/sin 6.5 = ..... now look at triangle ABP we just found BP and angle ABP = ...
Monday, February 4, 2013 at 10:13pm by Reiny

Math-Trigonometry
Use the half-angle formulas to find the exact values. Cosine 165 degrees, Sine 157 degrees 30' and tan pi/8
Sunday, April 22, 2012 at 5:01pm by Neicey

Trig Help Please!!!
Your given information is of the format SAS , so it requires the cosine law to find c c^2 = 95^2 + 137^2 - 2(95)(137)cos 38° ... c = 85.335 I would now find angle A using the sine law, then the third angle is easy.
Thursday, April 5, 2012 at 11:43pm by Reiny

math
If your drawing a sine graph and you have to mark the point sine(65, how do you figure out where the point goes? (The sine graph goes up to 1)
Sunday, September 30, 2007 at 8:29am by Anonymous

Trig-sine, cosine law
Um the answer I was given was 5.7km or 30.5km So how wud u get these answers?
Tuesday, July 20, 2010 at 7:55pm by Nada

trigonometry
If you are trying to write sqrt(15), write it as ã15, not 15ã. A sine can not exceed 1, buy the way
Monday, February 11, 2013 at 1:27am by drwls

Trigonometry
express in terms of sine and cosine. a) tan theta/ cot theta i know the answer is sin^2 theta / cos ^2 theta but how do you do it?
Thursday, March 22, 2012 at 5:45pm by Jonathan

Maths
for a graph from 0 to 2pi, there will be n complete periods of the sine curve. The period of each sine curve will be 2pi/n e.g. y = sin 4x will have 4 complete sine curves from 0º to 360º, and each sine curve will have a period of 90º or y = sin 4x will have 4 ...
Monday, October 12, 2009 at 10:44pm by Reiny

trigonometry
in triangle abc, m<c=90, bc=20, and ba=40. a.find sine a b.find measure of <a
Tuesday, May 18, 2010 at 5:55pm by james

trigonometry
I have posted a corrected version of solution using the law of tangents. I believe by now you are capable of doing the calculations (multiplications and divisions) using logarithms. I found the third side (c) using the cosine rule, but it gives the same answer as the sine rule...
Saturday, February 26, 2011 at 6:21pm by MathMate

trigonometry
your period is pi i got that by dividing 2pi(which is the regular period for cos and sine) by 2 and then you move everything up 2 and to the right pi
Saturday, February 2, 2013 at 1:39am by vii

geometry
Why are you shouting? You could use the Sine Law let the missing side by x x/sin45 = 5/sin67.5 x = 5sin45/sin67.5 = 3.827 you could also use the Cosine Law: x^2 = 5^2 + 5^2 - 2(5)(5)cos45 = 50 - 35.35534 = 14.6447 x = √14.6447 = 3.827
Wednesday, November 3, 2010 at 5:15pm by Reiny

algrebra 2 / trig
guessing that you are describing a triangle ABC , use the cosine law c^2 = a^2 + b^2 - 2(a)(b)cosC = 1 + 4 - 2(1)(2)cos50 = 2.42885 c = 1.5585 Now use the sine law to find a second angle. The use the angle sum of a triangle to find the third angle.
Monday, June 6, 2011 at 3:46pm by Reiny

CALCULUS
Thanks! I agree about the components but the question said specifically to use cosine and sine law :(. Thanks very much though!
Saturday, June 28, 2008 at 3:31pm by Derek

Trigonometry
law of cosines b^2 = a^2 + c^2- 2ac cos B
Monday, May 30, 2011 at 4:45pm by Damon

Algebra2---
1. An artist is designing triangular mirrors. Determine the number of different triangles that she can form using the given measurements. Then solve the triangles. Round to the nearest tenth. a=4.2 cm b= 5.7 cm measure angle A= 39 degrees 2. What angle in the first quadrant ...
Thursday, April 18, 2013 at 8:04pm by Anonymous

Algebra 2 ..
1. An artist is designing triangular mirrors. Determine the number of different triangles that she can form using the given measurements. Then solve the triangles. Round to the nearest tenth. a=4.2 cm b= 5.7 cm measure angle A= 39 degrees 2. What angle in the first quadrant ...
Thursday, April 18, 2013 at 1:00am by Anonymous

Algebra 2....
1. An artist is designing triangular mirrors. Determine the number of different triangles that she can form using the given measurements. Then solve the triangles. Round to the nearest tenth. a=4.2 cm b= 5.7 cm measure angle A= 39 degrees 2. What angle in the first quadrant ...
Wednesday, April 17, 2013 at 10:41pm by Anonymous

trigonometry
make a diagram label the tower AB , where A is the top of the tower. label the man's first position C, his second position D so that DC = 300 Look at triangle ADC, angle D = 35° angle ACD = 110° , so then angle DAC = 35° so the triangle is isosceles (lucky) and...
Tuesday, July 12, 2011 at 10:11am by Reiny

Pre-Calculus
Solve the triangle. Round to the nearest tenth. B=54deg a=42 c=6.5 1. I found length of b using law of cosine and got 36.2 2. Using side of b, I used the law of sine to get angle A = 28.2 3. I added B+A and subtracted from 180 to get angle C = 127.8 which DOES NOT make sense ...
Monday, December 7, 2009 at 12:47am by Vincent

math
could someone please help. given each set of data for ∆ABC: a) solve for b given ∠B=88 degrees,a=31.5m,c=25.6cm b) solve for a given ∠B=66 degrees,∠C=28 degrees,c=11.6cm i) state whether the sine law or cosine law is required to solve ...
Thursday, March 25, 2010 at 11:05am by deborah

trig
y = (3sinx/2) + 4 If you mean y = 3 sin (x/2) + 4 the amplitude is 3 It goes up from 4 to 7 when the sine is +1 and down from 4 to 1 when the sine function is -1
Monday, April 21, 2008 at 8:54pm by Damon

MATH
You ignored the 10 minutes of the 63º angle so A = 63.1667º which would slightly alter your angles. However I tested your solution for the angles if A = 63 and the angles are correct for that version your value of c is correct for A=63 why did you use the cosine law...
Sunday, May 25, 2008 at 6:59pm by Reiny

Pre Calc
In this notation, small letters are usually used to represent sides, and capital letters to indicate the angles at the vertex, so yours : b=14, c=15, cos A = 3/5 direct application of the cosine law a^2 = 14^2 + 15^2 - 2(14)(15)cos A = .... once you have a use the Sine Law to ...
Monday, April 13, 2009 at 9:16pm by Reiny

Calc.
I made a diagram and obtained a triangle with sides 37 and 210 with a 19ºbetween them Using the cosine law if found the side opposite the 19º angle to be 175.4 So the bee is 175.4 m from the hive Then using the sine law I got the angle between the resultant and the ...
Wednesday, July 2, 2008 at 8:13pm by Reiny

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