Question

if sin2x=3sin2y, find 2tan(x-y)

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if sin2x=3sin2y, prove that: 2tan(x-y)=tan(x+y) if sin2x=3sin2y, prove that: 2tan(x-y)=tan(x+y) ( here, in sin2x, 2x is an angle., like the... Verify the following: 1. cos x/(1-sinx)= sec x + tan x 2. (tanx+1)^2=sec^2x + 2tan x 3.... If Sin2x=3sin2y then prove: 2tan(x-y)= tan(x+y)