1.If 12≤x≤1\frac{1}{2} \le x \le 121≤x≤1, then cos−1x+cos−1(x2+123−3x2)\cos^{-1} x + \cos^{-1} \left(\frac{x}{2} + \frac{1}{2}\sqrt{3 - 3x^2}\right)cos−1x+cos−1(2x+213−3x2) is equal toa.π6\frac{\pi}{6}6πb.π3\frac{\pi}{3}3πc.π\piπd.000Login to continueOnly logged in users canattempt or see the solution.
