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- \cot t + \cot \left(2 \sin^2 t\right) The expression from the previous step then simplifies to \sin 2t -...

- \cot t + \cot \left(2 \sin^2 t\right)
The expression from the previous step then simplifies to \sin 2t - \cot t using what?

Answer

Answer 1: The expression - \cot t + \cot \left(2 \sin^2 t\right) can be simplified using trigonometric identities. Specifically, the identity for the double angle of sine, \sin 2t = 2 \sin t \cos t, and the identity for cotangent, \cot x = \frac{\cos x}{\sin x}, can be used to simplify the expression to \sin 2t - \cot t.

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