Recent Homework Questions About Trigonometry
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trig
cos^4 15-sin^4 15 with out using calculator
Wednesday, February 15, 2012 at 7:45pm
trig
If cosecant of theta equals 3 and cosine of theta is less than zero, find sine of theta, cosine of theta, tangent of theta, cotangent of theta and secant of theta
Wednesday, February 15, 2012 at 6:43pm
trig
from an observer tower, a ff.above the level of a river,the angle of depression of a point on the near shore is theta and that of a point directly beyond on the far shore is FI. show that the width of the river is a (cotan theta=p+q/r)
Wednesday, February 15, 2012 at 6:19am
trig
right triangle has an acute angle of 24.8 and an adjacent length of 145 what is the side opposite of the acute angle
Tuesday, February 14, 2012 at 8:09am
trig
refer to right triangle ABC with C = 90degrees. Given a= 2 and b=√5 Find the six trigonometric functions of A. and find the angles A and B
Monday, February 13, 2012 at 9:44pm
Math [Trig]
how do you find a full cycle of a trigonemtric function?
Monday, February 13, 2012 at 5:39pm
trig
CSC(theta)=1.92 Find Theta. Now I know CSC = 1/sin but no matter how I enter it into my cal I get an error.
Monday, February 13, 2012 at 6:38am
Algebra/Trig Check Answers please
Please check these answers thanks. 1. The shadow of a vertical pole is 24.8 feet long when the angle of elevation of the sun is 42degrees 0.0'. Find the height of the pole. Answer: 22.3=height 2. From a point on a lighthouse 108 feet above water, the angle of depression of...
Saturday, February 11, 2012 at 4:52pm
Algebra/Trig Check Answers please
Can you please check these answers thanks 1. A ladder 14 feet long is leaning against a house. The foot of the ladder is 4.8 feet from the house. Find the angle of elevation of the ladder and the height it reaches on the house. Answer: 13.2=height 18.9 =angle of elevation 2. ...
Saturday, February 11, 2012 at 4:47pm
Math/trig
Log radical b/ a^2 is equivalent to 1) 1/2 log b + 1/2 log a 2) l/2 log b- 2 log a 3) 2 log b - 1/2 log a 4) 1/2logb/2 log a
Saturday, February 11, 2012 at 1:27pm
Math/Trig
Which logarithmic equation is equivalent to L^m = E 1) LogL E = m 2) logE L = m 3) logm E= L 4) logE m= L
Saturday, February 11, 2012 at 1:25pm
trig
The hypotenuse of the right triangle PQR is 16ft. length. The sine of the angle <P is 3/5. How many feet long is the line if QR?
Saturday, February 11, 2012 at 1:20pm
trig
If theta is an angle in standard position, state in what quadrants its terminal side can lie if theta is equal to -415 degrees?
Friday, February 10, 2012 at 7:34pm
TRIG
In a right triangle ABC, C = 90°, b = 380.1 inches and c = 589.1 inches. Solve for all the missing parts using the given information. (Round each answer to one decimal place for side and to two decimal places for angles.) A = ° B = ° a = inches IM lOST!
Friday, February 10, 2012 at 3:33pm
trig
I dont understand this. can you please tell how you got each answer? describe how the graph of each function is related to a basic trigonometric graph. 1. y= 1/2cos x 2. y= 2cos x+1 3. y= sin x-4 4. y= sin(x-4) 5. y= sin(3x) 6. y= cos(1/2x) 7. y= -cos x 8. y= -cos x+2 9. y= -...
Friday, February 10, 2012 at 12:41am
trig
if diameter of the circle is 100 cm. and length of the arc forming the angle is 360 cm. Assume that the earth is a perfect sphere of diameter 8000 miles. Find the distance between: Rome, Italy: latitude 42 degrees north Copenhagen, Denmark: latitude 54.3 degrees north
Wednesday, February 8, 2012 at 9:11pm
trig
Find sin t,cos t and tan t when the terminal side of an angle of t radians passes through ( -3/5 , -4/5) on the unit circle.
Wednesday, February 8, 2012 at 9:08pm
trig
Find sin t ,cos t and tan t when the terminal side of an angle of t radians passes through (2 , 7)
Wednesday, February 8, 2012 at 8:59pm
trig
Find sin t ,cos t and tan t when the terminal side of an angle of t radians passes through (2 , 7)
Wednesday, February 8, 2012 at 8:58pm
trig
Given theta is in the standard position and is in the first quadrant , if the terminal side of the angle theta is parallel to the line y=x+4 on ,find the measure of theta in degrees.
Wednesday, February 8, 2012 at 8:56pm
trig
Given theta is in the standard position and is in the first quadrant , if the terminal side of the angle theta is parallel to the line on ,find the measure of theta in degrees.
Wednesday, February 8, 2012 at 8:47pm
trig
Solve the equation 2 tan C - 3 = 3 tan C-4 algebraically for all values of C in the interval 0 degrees <_ C < 360 degrees
Wednesday, February 8, 2012 at 6:59pm
trig
If the value of sin theta =12/13 then find the value of 1-cos theta/1+cos theta.
Wednesday, February 8, 2012 at 1:51am
Trig
If sin(t)=4/5 & 0<t<pi/2, find the following: a)sin t(-t) b) sin(t-2pi) c)cos t d)cos(pi-t)
Wednesday, February 8, 2012 at 12:59am
Trig
if tan(x)=9/4, find cos(x) if pi<x<3pi/2
Wednesday, February 8, 2012 at 12:56am
Trig
Help please! Thank you! If csc(theta)= -2 and theta lies in Quadrant III, find tan(theta).
Tuesday, February 7, 2012 at 8:55pm
trig
if (0,-7) lies on the terminal side of angle theta in standard position, find each value sec(theta) , cot(theta) and sin(theta)
Monday, February 6, 2012 at 9:19pm
TRIG HELP ASAP
I really need help on this problem. A sector has area of 15 in^2 and central angle of 0.2 radians. Find the radius of the circle and arc length of the sector
Monday, February 6, 2012 at 7:48pm
Geometry/trig
A plane is flying due south at a speed of 300 mph. The wind is blowing from the west at a speed of 40 mph. Find the resultant speed of the plane and the direction of the plane
Monday, February 6, 2012 at 4:40pm
trig
tan theta= square root of 3 / 3 if o degrees is less than or equal to theta less than o equal to 360
Monday, February 6, 2012 at 12:31am
Calculus
Integrate [1/square root of(e^(2x)-1)]. I have to use u substitution. We are doing the integrals of inverse trig functions, but I cannot get it to work out!
Sunday, February 5, 2012 at 10:43pm
trig
A race driver has a pit stop to refuel. After refueling, he starts from rest and leaves the pit area with an acceleration whose magnitude is 5.5 m/s^2; after 3.6 s he enters the main speedway. At the same instant, another car on the speedway and traveling at a constant ...
Sunday, February 5, 2012 at 12:17am
trig
If tan theta = sin theta, and theta is greater than or equal to 0 and less than or equal to 2 pi. find cos theta and what is theta
Saturday, February 4, 2012 at 9:43pm
trig
What is the domain, range, and period of y= sin x + 1 What is the domain, range, and period of y= -cos x Can someone please help?
Friday, February 3, 2012 at 1:41pm
Trig
can you please simplify these in faction form? (pi/3) +1=? (2pi/3) +1=? (3pi/4) +1=? (5pi/4) +1=? (5pi/3) +1=? thank you so much!
Friday, February 3, 2012 at 1:21pm
Trig
a. What is the length of the hypotenuse of triangle ABC? b. What is the length of the shorter leg of triangle ABC? c. What is the length of the longer leg of triangle ABC? angle A=60, angle B=30, angle C=90 the triangle has a height of 10
Friday, February 3, 2012 at 12:18pm
trig
use the discriminant to solve for the smallest value of b that would make the roots of the equation x^2+bx+5=o imaginary
Thursday, February 2, 2012 at 8:14pm
trig
what is the correct answer in trigonometric identities. DiViDE ; x^5 + 5x^4 - 2x^3 + 3x^2 + 2x + 1 by x + 3
Thursday, February 2, 2012 at 7:15am
trig
what is the correct answer in proving trigonometric identities if tan theta / sin theta = sec theta
Thursday, February 2, 2012 at 7:12am
trig
what is the correct answer in proving trigonometric identities if tan theta/sin theta = sec theta
Thursday, February 2, 2012 at 7:10am
trig
what is the correct answer in proving trigonometric identities if tan theta cos^2 theta + cos^2 theta
Thursday, February 2, 2012 at 7:06am
Trig
Its a 30-60-90 triangle there's a line in the center that= 10 a. What is the length of the hypotenuse of triangle ABC? b. What is the length of the shorter leg of triangle ABC? c. What is the length of the longer leg of triangle ABC?
Wednesday, February 1, 2012 at 11:12pm
Trig
angle b=25 degrees, angle c=90 AB= 25 a. Find the length of side b to two decimal places. b. Find the length of side a to two decimal places in three different ways.
Wednesday, February 1, 2012 at 11:00pm
Trig
Sarah used her calculator to find sin125 degrees . She wrote down sin125 degrees = -.57. How could Sarah recognize that her answer is incorrect?
Wednesday, February 1, 2012 at 10:56pm
trig
a grocery store display consists of cases of soda. there are 15 cases at the base, and 1 case at the top. if there are 15 rows, how many cases are needed for the entire display? a) 180 b)30 c)130 d)15
Wednesday, February 1, 2012 at 9:27pm
trig
What is the length of the circular arc intercepted by a central angle of 20degrees in a circle with a radius of 5cm?
Wednesday, February 1, 2012 at 9:16pm
trig
What does sin(squared)t + cot(squared)tsin(squared)t equal? and can someone explain it?
Wednesday, February 1, 2012 at 9:08pm
alg2/trig
starting salary for a job is $30,000 with a guaranteed raise of $5,000 each year for the first 5 years. write an explicit formula to represent how much money you would earn each year. please somone help!
Wednesday, February 1, 2012 at 9:05pm
trig
The angle of elevation to the top of a very tall Building is found to be 15° from the ground at a distance of 1 mi from the base of the building. Using this information, find the height of the building
Wednesday, February 1, 2012 at 5:00pm
Math-trig
A Ferris wheel with a diameter of 100 feet rotates at a constant rate of 4 revolutions per minute. Let the center of the Ferris wheel be at the origin. The height h (in feet) of a Ferris wheel car located at the point (x, y) is given by h = 50 + y where y is related to the ...
Wednesday, February 1, 2012 at 1:00pm
trig
4 costheta +3sintheta=5,4sintheta-3costheta=WHAT
Wednesday, February 1, 2012 at 8:09am
trig
in proving trigonometric identities if sec theta - tan theta sin theta is equal to cos theta. what is the correct answer?
Wednesday, February 1, 2012 at 7:28am
trig
in proving trigonometric identities if 1 + sin^2 theta is equal to 2 sin^2 theta + cos^2 theta. what is the correct answer?
Wednesday, February 1, 2012 at 7:25am
trig
in proving trigonometric identities if cot theta sin theta = cos theta. what is the correct answer?
Wednesday, February 1, 2012 at 7:18am
trig
starting salary for a job is 30,000 with a guaranteed raise of $5,000 each year for the first 5 years. write an explicit formula to represent how much money you would earn each year. how much money would you earn in the fifth year?
Tuesday, January 31, 2012 at 10:56pm
trig
How can I find the exact value of 4cos(7ð/4)-2sin(ð/3)?
Tuesday, January 31, 2012 at 10:05pm
trig
how can we find the value of sin -720
Tuesday, January 31, 2012 at 9:06pm
alg2\trig
a colony of 300 bacteria doubles each day. write an explicit formula to determine how many bacteria there would be on the nth day. how would you do this?
Tuesday, January 31, 2012 at 8:09pm
trig
The terminal side of θ lies on a given line in the specified quadrant. Find the values of the six trigonometric functions of θ by finding a point on the line. Line: (55/48)x Quadrant:III sin(θ)= cos(θ)= tan(θ)= csc(θ)= sec(θ)= cot(θ)=
Tuesday, January 31, 2012 at 7:06pm
trig and algerba
6+7(t - 1) = 5(t + 7) + 8 what does t equal
Tuesday, January 31, 2012 at 5:18pm
trig
If A=55 degrees 55 minutes and c=16, find a.
Tuesday, January 31, 2012 at 3:06pm
trig
Prove (1+secx)/(tanx+sinx)=cscx
Tuesday, January 31, 2012 at 1:38pm
trig
Find the indicated trigonometric function, given that è is an angle in standard position with the terminal side passing through the given point. 2) (15, 20); Find csc è. A) 5/3 B) 3/4 C) 5/4 D) 4/3
Tuesday, January 31, 2012 at 12:07pm
Trig
Solve the following trig equation 2cos(x-π/6)=1
Tuesday, January 31, 2012 at 2:51am
Trig
Prove (1+secx)/(tanx+sinx)=cscx
Tuesday, January 31, 2012 at 2:28am
Trig
Solve 5^2x -4(5^x)=12
Monday, January 30, 2012 at 7:45pm
Trig
Solve Log[8](log[5]x)=0
Monday, January 30, 2012 at 6:52pm
Trig
Write the following in terms of sin(θ) and cos(θ); then simplify if possible. csc(θ) - cot(θ)cos(θ) =
Monday, January 30, 2012 at 1:10pm
alg2\trig
if a3= 17 & a8=37 are terms in annarithmetic sequece, fina a1 & d. the answer is a1=9 & d=4 but i dont understand how they got the answer, please help!
Sunday, January 29, 2012 at 9:10pm
trig
sin2x=cos3x then sinx=?(if 0<x<pi/2)
Sunday, January 29, 2012 at 9:31am
trig
Find sec^2 x (4 tan^2 x-3)
Saturday, January 28, 2012 at 4:16pm
Trig
Sketch a unit circle and label the terminal points corresponding to t= pi/4, 3pi/4, 5pi/4, 7pi/4. Include the coordinates of each point. I have 3 other problems like this and i have no clue how to do them. can someone help please?
Saturday, January 28, 2012 at 2:00pm
trig
if x is an acute angle and sinx= cosx then find the value of x?
Saturday, January 28, 2012 at 1:24am
Precalculus
Consider the equation 7sin^2x - (4sin2^x)/cosx = -1 a) Put the equation in standard quadratic trig equation form. Why is it 7sin^2x - 8sinx + 1 =0?
Friday, January 27, 2012 at 8:21pm
trig
What is cos(11pi/3)? Explain your thinking. What is sin(13pi/4) ? Explain your thinking.
Friday, January 27, 2012 at 6:39pm
trig
Sketch a unit circle and label the terminal points corresponding to t= pi/4, 3pi/4, 5pi/4, 7pi/4. Include the coordinates of each point
Friday, January 27, 2012 at 6:37pm
trig
What are the coordinates of the terminal point determined by t=7pi/6 ?
Friday, January 27, 2012 at 6:35pm
Trig
tan(θ) = a (a ≠ 0), find cot(θ).
Friday, January 27, 2012 at 6:12pm
TRIG
Find the remaining trigonometric ratios of θ if sin(θ) is given and θ QI sin(θ)=7/sqrt 149 cos= tan= cot= csc= sec=
Friday, January 27, 2012 at 5:19pm
trig
how to do root3 value
Friday, January 27, 2012 at 11:00am
trig
Graph f(x)= second(2x+3.14/4)
Friday, January 27, 2012 at 10:41am
trig
Determine if the value of each trig function is positive, negative, zero, or undefined. a) tan 310 degrees b) cos 7pi/6 c) sin -245 degrees d) sec( -7/2)
Thursday, January 26, 2012 at 11:14pm
trig
Find the length of the circular arc intercepted by a central angle of 20 degrees in a circle or radius 5cm
Thursday, January 26, 2012 at 10:46pm
trig
Find the reference angle for each given angle: a) 325 degrees b) 14pi/3 c) -190 degrees
Thursday, January 26, 2012 at 10:21pm
trig
If point G(a,b) lies on the terminal side of angle theta in standard position, what is the value of sin(theta) if point G also lies on the unit circle?
Thursday, January 26, 2012 at 10:14pm
trig
If point (3, -8) lies on the terminal side of an angle A in standard position, find: a) sinA b) tanA
Thursday, January 26, 2012 at 10:09pm
trig
If the point (-3,0) lies on the terminal side of angle theta in standard position find: a) csc theta b) cot theta
Thursday, January 26, 2012 at 10:08pm
trig
The second hand on a clock is 8 inches long. If the second hand travels a distance of 10pi inches, what is the positive radian measure of the angle that the second hand travels through?
Thursday, January 26, 2012 at 9:52pm
trig
Are 22pi/5 and 100 degrees coterminal? explain.
Thursday, January 26, 2012 at 9:47pm
trig
Find the exact value. Without using a calculator a) cos (-17pi/6) b) sec (3pi/2)
Thursday, January 26, 2012 at 9:46pm
trig
If theta is the measure of an angle in standard position with the given conditions, find the quadrant(s) in which the terminal side of theta lies. a) cot theta < 0 b) cos theta > 0 , csc theta < 0
Thursday, January 26, 2012 at 9:42pm
trig
Use a ratio identity to find tan(θ) if given the following. sin=6/sq rt 37 and cos 1/sq rt 37
Thursday, January 26, 2012 at 12:31am
trig
Find the remaining trigonometric ratios of θ if sin(θ) = -1/6 and θ is not in QIII cos tan cot csc sec
Thursday, January 26, 2012 at 12:29am
trig
Give the reciprocal of the following. 7/15
Thursday, January 26, 2012 at 12:28am
trig
If sin(θ) = 8/17 and θ terminates in QI, find cos(θ)
Thursday, January 26, 2012 at 12:28am
trig
find two values of theta, zero degrees is than or equal to theta which is less than 360 degrees, that satisfy the given trigonometric equation. tan theta equals radical 3.
Wednesday, January 25, 2012 at 11:49pm
trig
Find y if the point (7, y) is on the terminal side of θ and cos(θ) = 7/25
Wednesday, January 25, 2012 at 10:37pm
trig
a. A sector that has been cut out of circular plastic sheet which has a circumference of 12.31 m. If the central angle of the sector is 1/4 of a revolution, find the area of the sector.
Wednesday, January 25, 2012 at 2:03pm
trig
What is the fundamental period of the function f(x)=4/9sinx
Wednesday, January 25, 2012 at 12:31pm
trig
Find the length of side b to the nearest whole number if side a=105,angle A=65 degrees and angle B=37 degrees?
Wednesday, January 25, 2012 at 12:12pm
trig
how to find out maxima of function 3acos3theta
Wednesday, January 25, 2012 at 1:55am
trig
not sure how to simplify tan(t+pi)/sin(t+2pi)
Tuesday, January 24, 2012 at 11:33pm
trig
city A is 300 miles directly north of city B assuming the earth to be sphere of radius 4000 miles determine the difference in latitude in degrees of the two cities
Tuesday, January 24, 2012 at 9:30pm
Trig
If a plane takes off on runway 31 (N 31o W) and flies 4 miles, then makes a right (90o) turn and flies 11 miles, what bearing will the traffic controller use to locate the plane?
Tuesday, January 24, 2012 at 9:08pm
trig
If the line OP of radius and(x,y) is rotated through a certain angle about the oringin
Tuesday, January 24, 2012 at 1:48pm
alg2/trig
what is the smallest value of k that would make the roots of the equation x^2-2x-k imaginary? please help, no idea how to do this.
Monday, January 23, 2012 at 9:29pm
trig
tan-5n over 3
Monday, January 23, 2012 at 8:16pm
TRIG HELP ASAP
I need help trying to find the major and minor axis on this problem: x^2+3y^2-6x+24y+6=0
Monday, January 23, 2012 at 7:41pm
trig
How do you decide if csc=74 is greater than or less than cos=74 without using a calculator?
Monday, January 23, 2012 at 1:08am
Trigonometry
What are these things called: -cos x = cos -x What are the rules to these trig rules? Thanks
Sunday, January 22, 2012 at 11:29pm
trig
4cos^2 theta = 3 where 0 degrees < theta< 360
Sunday, January 22, 2012 at 10:01pm
alg2/trig
1)3x^2-12x-21 solve by completing the square in simplest radical form 2) (1/x+3)-(2/3-x)=(4/x^2-9)find values of x 3)3/radical(3a^2b^4) is equivalent to 4) factor completely 27x^-75x^4
Sunday, January 22, 2012 at 7:57pm
trig
Please explain to me how to get this -- what quadrant tan theta < 0, sin theta < 0 is in.
Saturday, January 21, 2012 at 7:06pm
Trig
what quadrant is this in and please explain... sin theta < 0, cos theta > 0
Saturday, January 21, 2012 at 6:51pm
trig
5pi/7 what quadrant is it in???
Saturday, January 21, 2012 at 6:07pm
Trig
Find the speed in both radians per second and degrees per second for the hour hand, the minute hand, and the second hand on a clock.
Saturday, January 21, 2012 at 3:49pm
algebra 2 trig
express the product of (2/3x^2-1/2x) and (12x+4/5) as a trinomial
Saturday, January 21, 2012 at 2:16pm
trig
How to get 5degree without using calculator using identities?
Friday, January 20, 2012 at 10:20pm
trig
if you are riding on a ferris wheel that is 60 ft tall and it takes you 5 minutes to make 1 revolution, what is your linear velocity?
Friday, January 20, 2012 at 10:20am
Math
Would someone verify these answers. 1. A person waves his hand back and forth, where their finger tips move past the starting position 4 cm in each direction. If he waves 20 times every 15s, what sine equation models the movement of the hand if the hand starts in the upright ...
Thursday, January 19, 2012 at 3:36pm
trig
I don't know to find the derivative of the following trig functions. Please help. f(x)= cotx h(x)= secx i(x)= cscx
Thursday, January 19, 2012 at 8:45am
trig
I don't know to find the derivative of the following trig functions. Please help. f(x)= cotx h(x0= secx i(x)= cscx
Thursday, January 19, 2012 at 8:45am
trig
If theta =( -7pi )/( 3) , then sec(theta) equals...?
Tuesday, January 17, 2012 at 5:27pm
trig
How do I get exact measures? cosine 270 degrees sin 90 degrees tan 360 degrees csc 45 degrees no calculator!
Monday, January 16, 2012 at 7:11pm
trig
how do I find this without a calculator? sin 90 degrees?
Monday, January 16, 2012 at 3:44pm
geom/trig
Using scissors to cut a rectangular piece of paper from one corner ro the opposite corner. The cut is 36 cm long and makes a 34 degree angle to the uncut edge. How many cm long is the paper (from the corner where he started the cut?
Monday, January 16, 2012 at 2:05pm
trig
I have a couple of these and cannot locate directions I can understand-please help! Draw the graph of y=3cos(2x) for 0< or= x < or = 2 pi
Monday, January 16, 2012 at 1:20pm
Trig
(x+3)^2/4^2 + (y-2)^2/5^2 The location of the Foci are at: a.(-3,-1) and (-3,-5) b. (-3,2) and (-3,5) c. (-3,-3) and (-3,7) d. (-3,1) and (-3,-5) I get (-3,2) and (-3,5) Am I correct?
Saturday, January 14, 2012 at 2:08pm
trig
From the top of a hill 700 ft. high, an observer notes that the angles of depression of two successive markerstones on a level ground, which leads straight away from the hill are 5 degree and 15 degree respectively. Find the distance between the two markerstones.
Saturday, January 14, 2012 at 5:27am
Trig-Please check
What are polar coordinates of (4,6) 1.Round r to nearest hundredth and theta to nearest hundredth of RADIAN My work: r^2 = x^ + y^2 r^2 = 4^2 + 6^2 r^2= 16 +36 r^ =52 r=7.21 I'm stuck on how to do theta in Radians, could you please assist
Friday, January 13, 2012 at 11:20am
trig
3x^2+16y^2=48 conic sections
Friday, January 13, 2012 at 2:05am
trig
I need help finding derivatives and antiderivatives. Given: f(x),find f'(x) 1. f(x)-2x^6 2. f(x)= -3x +7 3. f(x)= 3x^2 - 5x 4.f(x)= 1/2x^2 - x + 4
Thursday, January 12, 2012 at 4:05pm
Trig
IfA=340°, prove that 2cosA/2 = -(v1+sinA) - (v1-sinA)
Thursday, January 12, 2012 at 5:12am
trig
evaluate sin (11pi/6) to the nearest thousandth.
Wednesday, January 11, 2012 at 11:49pm
trig
write sec theta in terms of sin theta when theta lies in quadrant III
Wednesday, January 11, 2012 at 11:43pm
trig
what is the amplitude of y=2+cos(-1/2 theta)?
Tuesday, January 10, 2012 at 8:22am
Trig
The question is: Set up a 2 column proof to show that each of the equations is an identity. Transform the left side to become the right side. a. (tan + cot)^2 = sec^2 + csc^2 I'm having trouble with this. b. (cos + sin)/cos + (cos - sin)/sin = csc sec I'm having ...
Sunday, January 8, 2012 at 9:48pm
Trig
(sin/cos)/ ( 1/cos - 1) = I'm stumped
Sunday, January 8, 2012 at 7:49pm
Trig
Proving Identities: 2 columns (tan + cot)^2 = sec^2 + csc^2 I'm having trouble breaking down the left side to = the right side.. Any help please
Sunday, January 8, 2012 at 7:38pm
trig
how do you work find sin (a-B)beta sign. sin a = 12/13,a lies in quadrant II,and cos B = 15/17, B lies in quadrant I.
Sunday, January 8, 2012 at 6:45pm
trig
solve for x in the following equations: 1) sin(arcsin x) = 1 2) 2arcsin x = 1 3) cos(arccos x) = 1/3
Sunday, January 8, 2012 at 10:34am
Trig
the horizontal speed of an airplane is 183mph. the magnitude of the plane's velocity is 200mph. write an expression describing the angle the angle the plane is climbing my solution: cos-1 183/200 is this right
Sunday, January 8, 2012 at 6:32am
trig
express 4/5-radical 13
Thursday, January 5, 2012 at 8:59pm
trig
express 4/5-ã13 plz
Thursday, January 5, 2012 at 8:58pm
trig
express 4/5-ã13 plz
Thursday, January 5, 2012 at 8:57pm
Trig
the center of a circle x^2 + y^2 + 8y =1 is a. (0,-2) b. (0,4) c. (0,1) d. (0,-4) I believe the answer is (0,4) Am I correct ?
Wednesday, January 4, 2012 at 10:34pm
Trig
The center of the circle (x+2)^2 + (y-3)^2 =1 is a. (2,3) b. (-2,3) c. (2,-3) d. (-2,-3) I believe b. is the answer, is that correct?
Wednesday, January 4, 2012 at 10:13pm
Trig
The radius of: (x+2)^2 + (y-3)^2 =9 is 3 is this correct?
Wednesday, January 4, 2012 at 10:04pm
Trig
If the center of a circle is at (2,2) with a radius of 4 the equation of the graph would be : a) (x-2)^2 + (y-2)^2 = 16 b) (x+2)^2 + (y+2)^2 = 16 I think it would be b is that correct?
Wednesday, January 4, 2012 at 10:02pm
trig
A river is 2000 ft wide and flowing at 6 mph from north to south. A woman in a canoe starts on the eastern shore and heads west at her normal paddling speed of 2 mph. In what direction (measured clockwise from north) must she aim her canoe? How long will it take her to go ...
Wednesday, January 4, 2012 at 8:20am
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