Question

arccos√2/2-arcsin-√3/2​

Answer 1

$arc \cos( \frac{ \sqrt{2} }{2} ) - arc \sin( - \frac{ \sqrt{3} }{2} ) = \\ \\ \\ \frac{\pi}{4} - ( - \frac{\pi}{3} ) = \\ \\ \\ \frac{\pi}{4} + \frac{\pi}{3} = \frac{3\pi + 4\pi}{ 12} = \frac{7\pi}{12} .$