1.The value of sin−1(−12)+cos−1(−32)\sin^{-1} \left( -\frac{1}{2} \right) + \cos^{-1} \left( -\frac{\sqrt{3}}{2} \right)sin−1(−21)+cos−1(−23) isa.cos−1(12)\cos^{-1} \left( \frac{1}{2} \right)cos−1(21)b.sin−1(−12)\sin^{-1} \left( -\frac{1}{2} \right)sin−1(−21)c.cos−1(−12)\cos^{-1} \left( -\frac{1}{2} \right)cos−1(−21)d.cos−1(−32)\cos^{-1} \left( -\frac{\sqrt{3}}{2} \right)cos−1(−23)Login to continueOnly logged in users canattempt or see the solution.
