SOLUTION: evaluate cos(2theta - pi/2) I need the most detail

Algebra.Com
Question 1144209: evaluate cos(2theta - pi/2)
I need the most detail

Answer by AnlytcPhil(1806)   (Show Source): You can put this solution on YOUR website!


Use these identities:








Edwin

RELATED QUESTIONS

cos( 2theta - Pi/2)=... (answered by htmentor)
Find the solutions to the equations. I need help solving the following.... (answered by Alan3354)
i need to evaluate/compute cos^2(pi/8)-sin^2(pi\8)... (answered by lwsshak3)
Find the exact value of cos(2theta) given csctheta=5/2 and... (answered by stanbon)
evaluate the (cos pi/4 +sin pi/6)^2 (answered by greenestamps)
evaluate the (cos pi/4 +sin... (answered by Edwin McCravy)
Cos 2theta cot 2theta + cot 2theta = 0. 0 less than or equal to theta less than or equal... (answered by solver91311)
Use the given information to find sin 2theta, cos 2theta, and tan 2theta. #1) cos theta (answered by lwsshak3)
Given that tan(theta)=5/4 , pi< theta < 3pi/2, find sin(2theta), cos(2theta),... (answered by lwsshak3)