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Evaluate sin[2cos^(-1)(-3/5)]....

Evaluate `sin[2cos^(-1)(-3/5)]`.

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To evaluate \( \sin\left[2 \cos^{-1}\left(-\frac{3}{5}\right)\right] \), follow these steps: ### Step 1: Assume \( \theta = \cos^{-1}\left(-\frac{3}{5}\right) \) This means \( \cos \theta = -\frac{3}{5} \). ### Step 2: Find \( \sin \theta \) using the Pythagorean identity We know that \( \sin^2 \theta + \cos^2 \theta = 1 \). ...
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