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If $3 sin x + 4 cos x = 5$, then $6tan\frac{x}{2}-9tan^2\frac{x}{2}$

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Sanchit Mishra , MCA aspirant
Commented Dec 07 , 2021

Anyone have solution

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sunil swain ,
Commented Dec 15 , 2021

Convert both $sinx$ and $cosx$ into $tan\frac{x}{2}$ using half angle formulas $sin2x = \frac{2tanx}{1+tanx^2}$ , $cos2x = \frac{1-tanx^2}{1+tanx^2}$

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Amit Kumar ,
Commented May 11 , 2022

Divide by cosx in given equation and use tan2x formula and then smplify you got answer

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