How to solve this equation in RR? 2sin^2x-sqrt(3)sin2x=0

1 Answer
Apr 18, 2017

x =( k pi) uu (pi/3+k pi) for k in ZZ

Explanation:

Using sin(2x)=2sin(x)cos(x) and substituting

2sin(x)(sin(x)-sqrt3 cos(x))=0

then we have

sin(x)=0->x=k pi with k in ZZ

and

sin(x)-sqrt3 cos(x)->tan(x)=sqrt3->pi/3+k pi with k in ZZ

so the solution is for

x =( k pi) uu (pi/3+k pi) for k in ZZ