Question

2sin2x cos(-x) = 0
помогите плес

Answer 1

2sin(2x)cos(-x)=0

sin(2x)cos(-x)=0

sin(2x)cos(x)=0

sin(2x)=0 ; cos(x)=0

$x = frac{kpi}{2}$

$x = frac{pi}{2} + kpi$

$x = frac{kpi}{2}$