Question

Решите систему уравнений

Answer 1

{sinycosy=1/2⇒1/2*sin2y=1/2⇒sin2y=1⇒2y=π/2⇒y=π/4
{sin2x+sin2y=0⇒sin2x+1=0⇒sin2x=-1⇒2x=-π/2⇒x=-π/4