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I want to prove that (2tanx)/(sec^2x)=sin2x.

I want to prove that (2tanx)/(sec^2x)=sin2x.
asked 22.0k views
2 votes
I want to prove that (2tanx)/(sec^2x)=sin2x.

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User Angel F Syrus
by
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1 Answer

4 votes

Answer:

Explanation:


LHS = (2 tan x)/(Sec^(2) x)\\\\= 2tan x * (1)/(Sec^(2)x)\\\\= 2*(Sinx )/(Cos x)*Cos^(2)x\\\\= 2Sin x *Cos x\\= Sin 2x

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User Kylefinn
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