SOLUTION: 1)Please prove: tan theta cot^2theta= 2-sec^2
2)Given cos theta=24/25, 0<theta<pi/2. Find
a) cos2theta
3)Find the exact value of sin165degreescos165deg.
Please help me an
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Question 782739: 1)Please prove: tan theta cot^2theta= 2-sec^2
2)Given cos theta=24/25, 0
a) cos2theta
3)Find the exact value of sin165degreescos165deg.
Please help me answer and give explanations and pls. reply soon, Thanks!
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
2) Given 
and 
, find )
\ =\ 2\cos^2\varphi\ -\ 1)
\ =\ 2\left(\frac{24}{25}\right)^2\ -\ 1)
Just do the arithmetic.
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
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