Trigonometry
Find the exact solution of the equation.
32cos−1x2=π\frac32\cos^{-1}\frac{x}{2}=\pi23cos−12x=π
x=−1x=-1x=−1
x=−2x=-\sqrt2x=−2
x=−12x=-\frac12x=−21
x=−32x=-\frac{\sqrt3}{2}x=−23