Trigonometry
Identify the equation which has a solution equal to π3\frac{\pi}{3}3π .
x=cos−1(1)x=\cos^{-1}\left(1\right)x=cos−1(1)
x=tan−1(3)x=\tan^{-1}\left(\sqrt3\right)x=tan−1(3)
x=sin−1(12)x=\sin^{-1}\left(\frac12\right)x=sin−1(21)
x=cos−1(32)x=\cos^{-1}\left(\frac{\sqrt3}{2}\right)x=cos−1(23)