Find an Online Tutor Now

278 Answered Questions for the topic Trigonometric Functions

Trigonometric Functions

02/07/16

find all the values of theta, if theta is in the interval [0 degrees, 360 degrees) and has the given function value of cos theta: square root of 3 over 2

 cos theta = square root of 3 over 2 
Trigonometric Functions Cosine

01/28/16

Trigonometric equations

if inverse cosine of x + inverse cosine of y = pi/2 show that x^2 + y^2 = 1
Trigonometric Functions Word Problem

01/19/16

Trig question

If f(x)=x^2    Find:     f(x+h)-f(x-h)                -------------------?(that's a fraction btw)                       2h   Please help!! Iv'e tried to solve this for forever:(  
Trigonometric Functions Word Problem

01/19/16

Word problem

Write the following equation in double intercept form: 2x-6y-3=0
Trigonometric Functions

12/15/15

Find the exact value of each trigonometric ratio: A. sin30 B. cos240 C. tan150

Confused with special triangles... do these values even involve special triangles? 
Trigonometric Functions Word Problem

12/10/15

Write the inverse....

Write the inverse of the following function. Y=4x+2/3
Trigonometric Functions Word Problem

12/10/15

Trig question

A student solves the inverse sine function and gets 330 ° for an answer. Is it correct? Why or why not?
Trigonometric Functions Trigonometry Trigonometric Formulas

12/07/15

Find the angle x such that 0 is less than or equal to x which is less that 2pi. cos(2x)= =2-2sin^2x

Find the angle x such that 0 is less than or equal to x which is less that 2pi. cos(2x)= =2-2sin^2x
Trigonometric Functions Trigonometry Trigonometric Formulas

12/07/15

HELP!! given sin(x)= -3/5, pi<x<3pi/2; cos(y)= 12/13, 3pi<y<2pi find exact value of:

given sin(x)= -3/5, pi<x<3pi/2; cos(y)= 12/13, 3pi<y<2pi find exact value of:   a) sin(2x)   b) cos(y/2)
Trigonometric Functions Trigonometry Trigonometric Formulas

12/07/15

Use sum, difference, product, sum to product, product to sum or half angle formulas to find the exact value of each expression.

a) sin50cos10+sin10cos50=   b)sin75+sin15=   c) sin105=   d) sin(5pi/24)cos(pi/24)
Trigonometric Functions Trigonometry Pre Calculus

11/22/15

How to deal with trigonometry in application?

A utility pole is anchored to level ground by two 53 ft wires, one on each side of the pole. The wires make a 65 (degree) angle with the ground below. How far apart along the ground are the wires?
Trigonometric Functions

11/19/15

verify the idenitity

sin(2x) - cos(2x) = sinx(sinx + 2cosx) - cos^2x 
Trigonometric Functions

11/19/15

Rewrite in terms of cosine only using proof

 1-sin^2x 
Trigonometric Functions

11/19/15

single trigonometric function: sin(x + y) - sin(y) cos(x) / cox(x) * cos(y)

simplify o a single trigonometric function:sin(x + y) - sin(y) cos(x) / cox(x) * cos(y)
Trigonometric Functions Math Precalculus

11/19/15

Cosine trigonometry

Assume 0 ≤ θ ≤ πIf cos(θ) = 1, What is csc(θ)? cot(θ)?
Trigonometric Functions

11/18/15

Simplify Single Trigonometric function: tanx * cscx

tanx * cscx 
Trigonometric Functions

11/16/15

Find the exact values of each of the remaining trigonometric functions of theta.

sec(theta)=2, tan(theta)>0.   Answers:   1. sin(theta)=? 2.cos(theta)=? 3.tan(theta)=? 4.csc(theta)=? 5.cot(theta)=?
Trigonometric Functions Math Trigonometry

11/11/15

If cos 4 = -2/3 and cot theta > 0, Find the other trigonometric functions of theta.

Hello guys, I've been having trouble with trigonometry, so I have this problem, we haven't discussed it yet that much so I'm puzzled. I'd be much appreciate if you write the process, it doesn't... more
Trigonometric Functions Cosine

11/10/15

Find all six trigonometric function values given cos x=7/12 and 3pi/2<x<2pi

need help solving
Trigonometric Functions

11/09/15

Trig question: find all solutions

2cos²4Θ + 2sin4Θ = 1 Find all solutions 0 ≤ x < 360º If necessary, round to nearest tenth degree   I keep substituting cos²Θ with (1 - sin²θ).. simplifying more.. doing quadratic formula... more
Trigonometric Functions

09/29/15

giving sin x = .2659 and cos x = .8467 find the exact value for sin(x+theta) between 0 and pi/2

giving sin x = .2659 and cos x = .8467 find the exact value for sin(x+theta) between 0 and pi/2
Trigonometric Functions

09/04/15

If sin(?) = - 1/3 with ? in Quadrant III, what is cos(?)?

PLEASE! I NEED THE ANSWER!
Trigonometric Functions

08/18/15

Find the Exact Value

Find the exact value of [sec(pi/4)cos(2pi/3)]/[tan(pi/6)/csc(3pi/4)]. You must have exact values, no decimals. 
Trigonometric Functions

08/18/15

Angles A and B are located in the first quadrant. If sinA=5/13 and cosB=3/5, determine the exact value of cos(A+B)

Angles A and B are located in the first quadrant. If sinA=5/13 and cosB=3/5, determine the exact value of cos(A+B). Show your work
1 4 5 7 9 10 11 12

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.