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Homework Help: Math: Trigonometry
Recent Homework Questions About Trigonometry
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trig
how do you find all the solutions when cos x = .75
trig
find in degrees the value of Ө in the interval O¡ÜӨ¡Ü 360 for which 2cos^2Ө-cosӨ-1=sin^2Ө give your answers to 1 decimal place where appropriate
trig
combine fractions and simplify to a multiple of a power of a basic trig. function.? sin x/cot²x - sin x/cos²x
Trigonometry
a satellite camera takes a rectangular - shaped picture. the smallest region that can be photographed is a 4 - km by 6 - km rectangle. as the camera zooms out, the length l and width w of the rectangle increase at a rate of 3km/sec. how long does it take for the area A to be a...
trig
how do you simplify "[sin(x)+tan(x)]/[1+sec(X)]"
Trig
How do I solve the following? sec 3 theta/2 = 2 on the interval 0<theta<2 pi? I tried to look in my textbook but it doesn't have an example. I also tried google and I was unsuccessful> How do I do this question? I know that the period for sec is 2 pi but I don'...
trig 26
simplify to a constant or trig func. 1. sec ²u-tan ²u/cos ²v+sin ²v change expression to only sines and cosines. then to a basic trig function. 2. sin(theta) - tan(theta)*cos(theta)+ cos(pi/2 - theta) 3. (sec y - tan y)(sec y + tan y)/ sec y combine fractio...
trig
simplify to a constant or basic trig function.. 1+tan(x)/1+cot(x)
trig
sin²u + tan²u + cos²u/ sec u simplify
trig
if cot(- theta) = 7.89, find tan(theta- pi/2)
trig
how do i find the corresponding function formula and check the symmetry algebraically
trig
y=4cos(3x-2(3.14))
trig
How do I solve for theta in tan theta = -1?
TRIG MATH
If sin theta= -7/8, then the value of 1/cot theta in the interval 3pi/2<theta is? okay I've done this question twice. The 1st time I got -7/sqrt15 and the next time got sqrt15/7. Are either of these right or am I totally messed??? I've got myself confused.
grade 12 trig
If cos A-1=0, where 0<or= A< 2pi, then A=? The answer I got was pi/3,5pi/3. I don't know where I went wrong can you please help. thanks
trig 30
If cos^2 theta -6 sin 2 theta =0, one value of theta is a)0 degrees b) 90 degrees c)180 degrees or D)255 degrees. Please show me how to do it and not just give answer cause I have two more questions that are similar. Thanks so much.
Math 30 Trig
For the equation 4 cos theta - sqrt12 =0, where 0< theta < or equal 2pi determine the measure of theta. One answer I got was 2pi/3, 4pi/3 and another time it totally different 5 pi/6, 7pi/6. Are either of these right if not HELP!
trig 30
For csc^2 A-1/cot A csc A, what is the simplest equivalent trig expression? The answers I have to choose from are sin A, cosA, tan A or csc A, but I don't know how?? csc theta= 1/sin theta but its ^2. Help please I don't even no where to begin
trig
I don't understand how to do this type of question? If 9cos^2 theta +3cos theta=0, where 90 degrees <theta<180 degrees, what is the value of theta, correct to the nearest tenth of a degree. Could someone please explain. Thanks
trig
The captain of a ship at sea sights a lighthouse which is 280 feet tall. The captain measures the the angle of elevation to the top of the lighthouse to be 25. How far is the ship from the base of the lighthouse?
trig
A plane is flying at an elevation of 30000 feet. It is within sight of the airport and the pilot finds that the angle of depression to the airport is 18. Find the distance between the plane and the airport. Find the distance between a point on the ground directly below the pla...
trig
prove: tan*2x-sin*2x=sin*2xtan*2x
trig
prove: cos*2x=csc*2x-2/csc*2x
trig
prove: cscxcos*2x+sinx=cscx
trig
prove: tan*2x-sin*2x=sin*2xtan*2x
trig
prove: 1+cosx/1-cosx-1-cosx/1+cosx=4cotxcscx
trig
find the fundamental solution set (FSS) for(cos2θ)(tanθ+1)=0
biology 123456723456782345678
The science of nutrigenomics helps us to choose the functional foods which best suit your genetic make up What is the link between your understanding of the human genome and the food you eat? thanks
math
to find of trigonometric ratios of angles 60
trignometry
prove: sin(a+b)/cosacosb=tana+tanb
precal
use a right triangle to write the expression as an algebraic expression. assume that x is positive and in the domain of the given inverse trigonometric function. sin(sec^-1 ãx^2+ 25/(x))
trigonometry
2. two look out situations, which are 25 miles apart along the coast on a north-south shoreline, spot an approaching yacht. One lookout station measures the direction to the yacht at N33 degrees E, and the other station measures the direction of the yacht at S62 degrees E. Ho...
trig
Solve the following for x, where 0 < x < 2 pi. 2 cos^2 x + cos x = 1
Trigonometry
Where does the graph of y = tan theta intersects the graph of y = -1.
Math 30
What is the simplest equivalent trigonometric expression for csc^2 A - 1/cot A csc A?
Trigonometry
Where does the graph of y = tan theta intersect the graph of y = -1 where n is any integer?
Math 30 Trig
What is the value of theta if 9 cos^2 theta + 3 cos theta = 0 where 90 degrees < theta < 180 degrees?
trig 30
What is the period of the function y =sin x/4?
trig math 30
Find the exact value of cos 8 degrees cos 38 degrees + sin 8 degrees sin 38 degrees
math 30 Trig
If sin theta = -7/8, then the value of 1/cot theta in the interval 3pi/2 <theta <2pi is:
math 30 Trig
A central angle subtends an arc of 35 cm. If the radius of the circle is 12 cm, what is the measure of the central angle?
trig
y=tan(2x+3.14/4)
Math
Match the trigonometric expression: cos^2 [(pi/2) - x] / cos x Does csc x match with this?
math
int 1/ (sq rt (4sec^2 x +4)) dx trigonometric substitution expression: sq rt (x^2-a^2) substitution: x=a sec x identity: sec^2 x -1=tan^2 x
math
respected sir i want to know the table describing the values of angles of trigonometry functions. eg. sin,cos & tan 15,30,45,60,75,90 seperately in table format. thanking you! padam singh.
trig
What is the projection of (2,6) onto (-1,5)?
Trig.
Prove sin(4x)= (4sinxcosx)(2cos(x)^(2)-1
Trig.
prove 2csc(2x)= csc(x)^2tanx
trig
How do you find the exact values of sin(u/2), cos(u/2), and tan(u/2) of tan(u)=-5/8
trig
Verify the identity: sin(x+y)/cos(x-y)=cotx+coty/1+cotxcoty
trig
A rear windshield wiper on a car has a total arm length of 10 inches and rotates back and forth through an angle of 95 degrees. The actual wiper blade is 7 inches long. Find the area of thr windshield that is being cleaned.
trig
Prove: 1-sinx/1+sinx=sec*2x-2secxtanx+tan*2x
trig
A rear windshield wiper on a car has a total arm length of 10 inches and rotates back and forth through an angle of 95 degrees. The actual wiper blade is 7 inches long. Find the area of thr windshield that is being cleaned.
trig
Prove: sec*4x-tan*4x=1+2tan*2x
trig
What is the period, amplitude and phase shift for: y=2sin(3x-pi)
trig
Given the polar coordinates of a point, how do I find the rectangular coordinates? (2, 3pi/4) (-4, 7pi/6) (2/3, -2pi/3) Given the rectangular coordinates of a point, how do I find the polar coordinates? (4, 0) (3, 4) (2, -2)
trig
I don't understand the question... When its argument is restricted to [0, 2pi), the polar form of a complex number is not unique. True or false?
trig
findall exact solutions ( in terms of radians) to the equation 2cos(40)-radical 3 =0
Trig
What is the exact value of cot(4pi/3)? Do not use a calculator.
Trig.
Can someone please help me with this? Find all solutions to the equation in the interval [0,2pi) cos2x=sinx I know I have to use some sort of identity, but I have no idea how to go about to solve this.
Trigonometry
You have a rectangular box with the length of 30cm, width of 15, and height of 25cm. You would like to send your friend several posters. When rolled up the length of the tube formed is 35cm. Will you be able to send the posters in the box without bending them.
Trigonometry
Each base angle of an isosceles triangle measures 42°. The base is 14.6 feet long. A) Find the length of a leg of the triangle. Round to the nearest tenth of a foot. B) Find the altitude of the triangle. Round to the nearest tenth of a foot.
trig
determine the coterminal angle between -360 and 360 for -540
Trigonometry
Each base angle of an isosceles triangle measures 42°. The base is 14.6 feet long. A) Find the length of a leg of the triangle. Round to the nearest tenth of a foot. B) Find the altitude of the triangle. Round to the nearest tenth of a foot.
trigonometry
How to verify this identity: 1+ tan x (over) = secant x sine x + cos x
Trigonometry
1) Find the coordinates of the point (-1,3) after the transformation T (to the -3,2 power) 2) What are the coordinates of point (-3,4) under D (to the 3rd power)? 3) Which of the following transformations could map the point (1,2) onto the point (3,6)? a)T (to the 2,3 power) b...
Trigonometry
1) If P'(2,-6) is the image of point P after the dilation D(to the 2nd power), what are the coordinates of point P? 2) A transformation maps (x,y) onto (x+2, y-1). Find the coordinates of A', the image of point A(-2,6) under the same transformation.
Trigonometry
A translation maps (-6,2) onto (-4,-2). Find the image of (3,5) under the same translation.
writing sentences and paragraphs
Paragraph 1 Background You’ve applied for a specific job in your field of study. The Human Resources Department arranges an interview and tells you to bring with you a polished piece of writing for them to evaluate your writing skills. The paragraph must describe one part...
Trigonometry
Show that cos M(1/cosM-cosM) is equal to sin^2M
trig
DISCUSS THE POSSIBLE VALUES OF THETA IF THE RATIO IS COS THETA IS EQUAL TO 0
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.
Trigonometry
If sin A= -3/5 and angle A is in quadrant IV, find cos A. I know i have to use the pythagoream identity..but i keep getting stuck.
trig
A wind storm caused a 64 ft pole to lean due easwt at an angle of 63.8 degrees to the ground. A 106 ft long guy wire is then attached to the top of the pole and anchored in the ground due west of the foot of the pole. How far from the foot of the pole is the guy wire anchored?
chemistry
is methanol's(CH3OH) shape tetrahedral, pyramidal, bent, linear, or trigonal planer? i dont think its bent or linear...i think its trigonal planer. am i right?
Trig
How do you express sin4x as a trigonometric funcition of x using the identities? I think that you are supposed to start with the sine sum identity and then use the double angle identities for sin2A and cos2A, but after that I get stuck...
Trigonometry
Use the cofunction identities to find an angle x that makes the statement true: tan(2x-140) = cot(x+5)
Trigonometry
Factor 1-sin^3x
trig
Solve the oblique triangle given the information:a=3, b=4, ã=40°
trig
Solve the triangle given the information:a=3, b=4, ã=40°
Trigonometry
How do you express sin4x as a trigonometric function of x?
trig
How do you find the asymptote of an exponential function? for example: f(x)= 2^x + 3
trig
we haven't discussed log properly yet! It's supossed to be on the RAT, but IDK. . . this is about as much as I know: if you have log(X) 2401 = 4, then x equals 7. One of the simulated questions asks to express 3log(2) p + 4log(2) Q - 2log(2) R. please help.
trig
Is y equal to cotx, tanx, cosx, or sinx if its graph is periodic with a period of 2pi, an amplitude equal to 1, and it passes through the origin?
trig
how do you graph the equation y=-2cosx?
Trig
How do you express these problems as single trigonometric function values or as single numbers, using identities? 1. cos^2pi/8-1/2 2. tan34degrees/2(1-tan^2 34degrees) 3. 1/8sin29.5degreescos29.5degrees
Trig
How do you express these problems as single trigonometric function values or as single numbers, using identities? 1. cos^2pi/8-1/2 2. tan34degrees/2(1-tan^2 34degrees) 3. 1/8sin29.5degreescos29.5degrees
Chem
Give the ideal bond angle for BrO3- ion? I know this has trigonal bipyramidal geometry and therefore the bond angle is < 109.5. Is there a way to determine a more specific bond angle?
Trigonometry
Suppose you have an isosceles triangle, and each of the equal sides has a lenght of 1 foot. Suppose the angle formed by those two sides is 45^\circ. Then the area of the triangle is square feet.
pre cal
Complete the statement by referring to a graph of a trigonometric function. (If you need to use or –, enter INFINITY or –INFINITY, respectively.) (a) As x (-3ð/4)+, tan(x)
MATH trigonometry
in an isosceles triangle the vertex angle measures 90 degrees and the length of each congruent leg is 5√2. whats the length of the base?
Pre Cal
Let P be the point on the unit circle U that corresponds to t. Find the coordinates of P and the exact values of the trigonometric functions of t, whenever possible. (If there is no solution, enter NO SOLUTION.) 9pi/4 Looking for sin, cos, tan,cot, csc, and sec
Pre Cal---Fix to the question below
Let P be the point on the unit circle U that corresponds to t. Find the coordinates of P and the exact values of the trigonometric functions of t, whenever possible. (If there is no solution, enter NO SOLUTION.) 4pi = ( , ) sin(4pi) = cos(4pi) = tan(pi) = cot(pi) = sec(4pi) =...
Trig
How do I simplify this? cos4xcos3x-sin4xcos3x I pulled the cos3x out as a common factor but that doesn't really help. Can someone please direct me on this. Thanks!
Pre Cal
Let P be the point on the unit circle U that corresponds to t. Find the coordinates of P and the exact values of the trigonometric functions of t, whenever possible. (If there is no solution, enter NO SOLUTION.) 4ð = ( , ) sin(4ð) = cos(4ð) = tan(4ð) = cot(4&et...
trig
2sin(3x-3.14)-1 find the inverse form of this equation
trig
find all solutions of the equation tan(sq)x=1
math 10
determine the value of the three primary trigonometric ratios i have triangle in front of me but what am i looking for? what is trigonometric ratios?
math-11
okay this is the frst day of grd 11 math and i am doing review and i dont remember anything what do they mean when they say " determine the velue of the three primary trigonometric ratios for <BAC in each of the following triangle.? and they give us the length of A-C w...
trig
A population of wolves in a county is represetned by the equation p(t)=80(0.98)^t. where t is the number of yers since 1998. predict the number of wolves in the population in the year 2008.
trig
hi honestly speaking i have no idea how to even start this problem but i know that a cube is to the 3rd power here is the problem Denis is designing a storage box in the shape of a cube.Each side of the box has a length of 10 inches. she needs more room anddecides to construct...
trig
In triangle ABC, sinA=0.6, a=10 and b=7. Find sinB
trig/algebra
if p is a multiple of 3 and q is a multiple of 5 which of the following is true?
trig
The eyes of a basketball player are 6 feet above the floor. The player is at the free-throw line, which is 15 feet from the center of the basket rim. What is the angle of elevation from the player's eyes to the center of the rim if the rim is 10 feet above the floor?
trig
A plane ascends at a 40° angle. When it reaches an altitude of one hundred feet, how much ground distance has it covered? To solve, use the trigonometric chart. Round the answer to the nearest tenth.
trig
Determine a pair of coterminal angles in radian measure to the angle pi over 2
Trig
How would you find tan80 and tan55 as needed in this problem? Use identities to find each exact value. (tan80+tan55)/(1-tan80tan55)
trig
what is the exact value of 7pi for all trig func.?
math
correction: use the unit circle to fin the ecaxtvalue for all trig functions theta=2pi/3
trig
use the unit circle to find the exact value for all the trig functions of è=2ð/3.
trig
if f(x)= log(2)x and g(x)= 2x squared +14, determine the value of (f o g)(5)
trig
A population of wolves in a country is represented by the equation P(t)= 80(0.98)^t, where t is the number of years since 1998. predict the number in the population in the year.
Can't understand trig problem
An airplane left an airport and flew east 174 miles. Then it turned northward flying along a bearing of N22E. When it was 254 miles from the airport, there was an engine problem and it turned back to take the shortest route possible back to the airport. Find theta, the angle t...
Math - Trigonometry
Math - Find the amplitude, period, phase shift - y=cosPi/2 (x+1/3)
Math - Trigonometry
Find the amplitude, period, and phase shift - y=cosð/2 (x+1/3)
trig
In a diagram of circle, chords AB and CD intersect at E. If AE = 3, EB = 4, CE = x, and ED = x - 4, what is the value of x?
trig
A population of wolves in a country is represented by the equation p(t)=80(0.98)^t, where t is the number of years since 1998. Predict the number of wolves in the population in the year 2008.
trig
find the exact value of cos(theta) if the terminal side of angle(theta) contains the point (-3,5)
alg2/trig
To the nearest minute, what is the approximate size of the smallest angle of a triangle whose sides are 4,5, and 8? How do I find the angle?
trig
Two sides of triangle CDE are 9 and 4, as shown. Write an equation in standard form for the line CD. Leave values as radicals. There is a picture of a triangle that passes through point (4,0) The answer is 65^1/2x + 4y = 4(65^1/2) But, I don't understand how to do this pro...
trig
If f(x) + log 2 (subscript 2) and g(x) = 2x (squared) + 14, determine the value of (f o g)(5)
pre calc
express the followinf trig functions in terms of an acute angle. (a) cos 143 degrees (b) tan 192 degrees
Trig
Let O represent the origin and P be the point (9, -4). Find the positive angle (counterclock wise direction)that the line segment OP makes with the positive x-axis. the answer is 5.86 radians but i keep getting 0.418 radian. please help and show work
Geometry.
HELP WITH ALOT OF QUESTIONS? TRIG? I don't get any concepts.
Trigonometry
A=30 degrees, a=9 and b=8. Find the missing sides/angles. I did cos39=x/8 and reduced that to 8cos39=x. I got 6.92. But that's not a valid answer, so I can't go from there. What did I do wrong? Can you show me how to get the other answers as well, please?
Trig
2cos^2Beta-Cosbeta=0 (find all solutions for the equation in the interval 0, 2 pi). I have no idea how to go about doing this. Do you isolate the beta on one side? Would you be able to show me how and I'll solve for you to check?
Trigonometry
"Sketch the graph of y=tan(x/2) By solving the equation x/2=-pi/2 x=- pi and the equation x/2=pi/2 x=pi..." Before I go any further, I need to understand where these equations came from. Where does the pi come from out of thin air? What becomes of the tangent? Can yo...
trig
Verify the trigonometric identity: [(1–sin²x)/sin²x]–[(csc²x–1)/cos²x]= -tan²x I still can't figure this out.
Trig
Let O represent the origin and P be the point (9, -4). Find the positive angle (counterclock wise direction)that the line segment OP makes with the positive x-axis. the answer is 5.86 radians but i keep getting 0.418 radian. please help and show work
Trigonometry
Two men on the same side of a tall building notice the angle of elevation to the top of the building to be 30 dgrees and 60 dgrees respectively. If the height of the building is known to be h equals 60 m, find the distance (in meters)btween the 2 men.
Trigonometry
A crow is on the ground 80 feet from the base of a 45 foot tall tree. It then flies straight throught the air to the top of the tree. What is the angle of the crow's flight path relative to the ground ?
Trigonometry
A little boy is flying a kite. The string of the kite makes an angle of 30 dgrees with the ground. If the height of the kite is h equals 15 m, find the length (in meters)of the string that the boy has used.
Trigonometry
A pole with a height of 60 ft. has a shadow of length of 34.64 ft at a particular instant of time. Find the angle of elevation of the sun at this point of time.
Trigonometry
You are stationed at a radar base in Warner Robins, GA and you observe an unidentified flying object at an altitude of 2000 m flying towards your radar base at an angle of 20 degrees. How far away from the radar base is that plane (hypotenuse)?
trig
cos2(120degrees) help me solve this please
Trig.
79): Find the area of the sector of the circle. Radius: 2.5 feet. Central Angle: 225 degrees. I multiplied (1/2)(25/4)(5pi/4), and I got 100pi/16, which reduced to 50pi/8 when I halved it. I reduced that to 25pi/4 or 19.63. But the book's answer is 12.27. How'd I mess up?
Trigonometry
Rapunzel is located in the highest room f a tower, and Prince Charming has come to save her is 100 m away from the base of the tower. If the Prince estimates that he is looking at Rapunzel's room at an exact 45 degree angle of elevation. How long must Rapunzel's hair b...
trig
Verify the trigonometric identity: [(1–sin²x)/sin²x]–[(csc²x–1)/cos²x]= -tan²x I can't figure this out.
Trigonometry
A preseason game Tennessee Titans punter A.J. Trapasso hit the giant HD TV screen suspended above the field at the new Cowboys stadium. At the time of the punt A.J. was 30 yards away from the edge of the tv screen (the tv screen starts at the 40 yard line, and AJ was at the 10...
Trigonometry
John is an Atlanta Hawks fan with seaon tickets for the past 5 years.John estimates that his seat is about 50 ft higher than the basketball court and he has calculated that he looks onto the court at an angle of depression of 20 degrees. How far away is the court from John'...
Trig.
A preseason game Tennessee Titans punter A.J. Trapasso hit the giant HD TV screen suspended above the field at the new Cowboys stadium. At the time of the punt A.J. was 30 yards away from the edge of the tv screen (the tv screen starts at the 40 yard line, and AJ was at the 10...
Trig.
John is an Atlanta Hawks fan with seaon tickets for the past 5 years.John estimates that his seat is about 50 ft higher than the basketball court and he has calculated that he looks onto the court at an angle of depression of 20 degrees. How far away is the court from John'...
Trig
Thanks for letting me know about wave seperation. Could you tell me more please. What exactally is meant by wave seperation. Does it mean above and below the midline or does it mean seperation between wave cycles? What does it mean?
Trig
in the equation y=acos b(x-h)+k, what exactally does b represent. How is it helpful?
Trig
In the equation y=4cos 6x, what does 6 represent? In general for the equation y-acosbx, what does b represent?
Trig
Give the exact value of the trigonometric function: arctan(√3)
Trig/Math
Find all the points having an x coordinate of 2 whose distance from the point (-1,-5) is 5. so far i have 5=sqrt((-1-2)^2+(-2-y)^2) 5=(-3)^2 how do i simplify the rest of the equation so i can find x. do i foil it out? thanks.
trigonometry
An airbus A320 aircraft is cruising at an altitude of 10000 m. The aircraft is flying in a straight line away from Rachel, who is standing on the ground. If she sees the angle of elevation of the aircraft change from 70 degrees to 33 degrees in one minute, what is its cruising...
trig
Prove : (sinA-cosA+1)/(sinA+cosA-1) = (1+sinA)/cosA
trig
Given that sin = 3/5 and lies in quadrant II, find the following value. cos
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