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If tan (π/4 + y/2) = tan^3(π/4 + x/2), prove that

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If tan (π/4 + y/2) = tan3(π/4 + x/2),  prove that

siny = sinx(3 + sin2x/1 + 3 sin2x)

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1 Answer

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Best answer

tan(π/4 + y/2) = (1 + tany/2/1 - tany/2)

Therefore, from the given condition,

Therefore,

therefore,

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