Question

ctg (arccos 1/2 + arcsin корень 3/2)

Answer 1

$ctg(arccos frac{1}{2} +arcsin frac{ sqrt{3} }{2} )=ctg( frac{ pi }{3} + frac{ pi }{3} )=ctg frac{2pi}{3} =- frac{ sqrt{3} }{3}$