Here's the exact formatting, If cos(t)=−7/9cos(t), where π<t<3π2π<t<3π2, find the value of the following trigonometric function cos(2t)

Here's the exact formatting, If cos(t)=−7/9cos(t), where π<t<3π2π<t<3π2, find the value of the following trigonometric function cos(2t)

box is 500N

I would like to know the tangent for 84 degrees.

Compound angles and exact values meed to he used

Please tell me I know sin2A, how to find Sin^2A, I don't know cosA or A?

This is all the information I got.. I can answer questions you have on the problem.

Looks like this kinda |\ | \ |__\ |__|_\

If 0 ≤ θ <2π, for what angles, θ, if any, is tan θ undefined?

Trigonometry

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Kevin is riding a mini Ferris wheel. He reaches the maximum height of 9m at 5s and then reaches the minimum height of 1m at 65s. a.What is the period (the length of time to complete one cycle)...

cant figure this out

This is translated from a trigonometry problem in another language, I hope you understand it.

I have a right triangle, but i only have the measures for its angles (90,60,30) Is there any way for me to find the length of one side

A circle has a radius of 19m . Find the radian measure of the central angle θ that intercepts an arc of length 5m . Do not round any intermediate computations,...

i know that the answer is 1/4 but i dont know how they solved it

sin(x) + sin(3x) = 4 sin(x) cos^2(x)

16 cos(2θ) = 16 cos^2(θ) − 9

tan(x) − 2 sin(x) tan(x) = 0

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