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if tanΘ=m tanø ,sinΘ=n sinø , then prove cos^2Θ=(m^2-1)/(n^2-1).

if tanΘ=m tanø ,sinΘ=n sinø , then prove cos^2Θ=(m^2-1)/(n^2-1).

Grade:10

2 Answers

Deepak Kumar Shringi
askIITians Faculty 4404 Points
5 years ago
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SOUVIK SADHUKHAN
13 Points
5 years ago
This is the answer...we can do the 2nd step because it is given in the question . And then just by squaring and rearranging we get the final answer of the qyequest...it is the following..........

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