Question

ctgx + корень из 3=0

Answer 1

$ctgx+ sqrt{3} =0\ ctgx =- sqrt{3}\ x=arcctg(- sqrt{3})+ pi k, k in Z\ x= pi - arcctg sqrt{3}+ pi k, k in Z\ x= pi - frac{ pi }{6} + pi k, k in Z\ x=frac{5 pi }{6} + pi k, k in Z$