If tan - 4 - y 2 -tan 3 - 4 - x 2 then 3-sin 2 x 1-3sin 2 x -

The correct option is D sin ysin x undefined ...

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Basic Trigonometric Identities

If tan π 4 ...

Question

If $tan (\frac{π}{4} + \frac{y}{2}) = {tan}^{3} (\frac{π}{4} + \frac{x}{2})$ then $\frac{3 + {sin}^{2} x}{1 + 3 {sin}^{2} x} =$

\frac{sin x}{sin y}

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\frac{cos x}{cos y}

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\frac{cos y}{cos x}

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\frac{sin y}{sin x}

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