Find the principal value of .

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Problem

Find the principal value of sin⁡−1(12)\sin^{-1}\left(\dfrac{1}{2}\right). (a) π3\dfrac{\pi}{3} (b) −π6-\dfrac{\pi}{6} (c) π6\dfrac{\pi}{6} (d) 5π6\dfrac{5\pi}{6}

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