Trigonometry
Find the exact solution of the equation.
arccosx+arctan3=7π12\arccos x+\arctan\sqrt3=\frac{7\pi}{12}arccosx+arctan3=127π
x=12x=\frac12x=21
x=22x=\frac{\sqrt2}{2}x=22
x=−12x=-\frac12x=−21
x=−22x=-\frac{\sqrt2}{2}x=−22