Question

-3arcsin √3/2-2arctg√3

Answer 1

$-3 arcsin frac{ sqrt{3} }{2} -2 arctg sqrt{3} =-3 * frac{ pi }{6} -2* frac{ pi }{3} =- frac{ pi }{2} - frac{2 pi }{3} =- frac{7 pi }{6}$