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Verify the identity. 2 tan(X = sin(2x) 1 + tan-(x) 2 tan(X) 2 tan (X) 1 + tan-(x) sec- ( x) cos(X) - 2 sin(x)

Verify the identity. 2 tan(X = sin(2x) 1 + tan-(x) 2 tan(X) 2 tan (X) 1 + tan-(x) sec- ( x) cos(X) - 2 sin(x) = sin(2x)

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