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Mon, 02/12/2013 - 12:40
#1
dineshbhai9
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Joined: 02/12/2013 - 11:25
Posts: 3
equal to

(sin2x) / (1+cos2x)  is ?   answer is in tan....

 

i changed sin2x     to       2sinx.cosx / (1+cos2x)

 

how to go to tan??

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Mon, 02/12/2013 - 12:50
dineshbhai9
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Joined: 02/12/2013 - 11:25
Posts: 3
equal

cot(x)(1-cos^2x) = ?? in  sin or sinx cosx ??

 

i tried ..  sinx/ cosx (1- cos^2x )   ..then???

 

thnk

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