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 one year ago
Use trig identites to transform the left side of equation into the right.
(1+cos theta)(1cos theta)= sin^2theta
 one year ago
Use trig identites to transform the left side of equation into the right. (1+cos theta)(1cos theta)= sin^2theta

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AravindG
 one year ago
Best ResponseYou've already chosen the best response.01+cos theta =2cos^2 theta/2

satellite73
 one year ago
Best ResponseYou've already chosen the best response.1multiply on the left, and get \[1\cos^2(\theta)\] then it should be easy enough

AravindG
 one year ago
Best ResponseYou've already chosen the best response.01cos theta=2sin^2 theta/2

satellite73
 one year ago
Best ResponseYou've already chosen the best response.1is it clear that \[1\cos^2(\theta)=\sin^2(\theta)\]?

mygeekpride
 one year ago
Best ResponseYou've already chosen the best response.0ooohh. yea. I see.

goformit100
 one year ago
Best ResponseYou've already chosen the best response.0"Welcome to OpenStudy. I can guide regarding this useful site; ask your doubts from me, for it you can message me. Please use the chat for off topic questions. And remember to give the helper a medal, by clicking on "Best Answer". We follow a code of conduct, ( http://openstudy.com/codeofconduct ). Please take a moment to read it."

adila98
 one year ago
Best ResponseYou've already chosen the best response.0use identity > a^2  b^2 for lhs then prove using cos2 + sin2 = 1

mjithin
 one year ago
Best ResponseYou've already chosen the best response.0(1+cosθ)(1−cosθ)=(1−cosθ+cosθ−cos2θ) = sin2theta
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