Question

решите уравнение
cos(pi/3+x)=o

Answer 1

$cos(frac{pi}{3}+x)=0\\ frac{pi}{3}+x = frac{pi}{2}+pi n\\ x = frac{pi}{2}-frac{pi}{3}+pi n\\ x = frac{pi}{6}+pi n, n in Z$