Question

Calculati cos(1/2 arcsin(√3/2))

Answer 1

$cos\Big( \dfrac{1}{2}\cdot arcsin \Big( \dfrac{ \sqrt{3} } {2}\Big) \Big) = cos\Big( \dfrac{1}{2}\cdot \dfrac{\pi}{3}\Big) = cos\Big( \dfrac{\pi}{6}\Big) = \dfrac{ \sqrt{3} }{2}$