Question

Решите плз!!! 3sin^2x-cos^2x=0

Answer 1

3sin^2x-cos^2x=0

2sin^2(x)-2cos^2(x)+1=0

1-2cos(2x)=0

2cos(2x)=1

x=1/6(6πn-π), n∈Z

x=1/6(6πn+π), n∈Z