1.The value of tan−1(1)+cos−1(−12)+sin−1(−12)\tan^{-1}(1) + \cos^{-1}\left(-\frac{1}{2}\right) + \sin^{-1}\left(-\frac{1}{2}\right)tan−1(1)+cos−1(−21)+sin−1(−21) isa.5π6\frac{5\pi}{6}65πb.π2\frac{\pi}{2}2πc.2π3\frac{2\pi}{3}32πd.3π4\frac{3\pi}{4}43πLogin to continueOnly logged in users canattempt or see the solution.
