Sin^2x-3sinx*cosx+2cosx=0

Question

Sin^2x-3sinx*cosx+2cosx=0

Answer 1

sinx*cosx--3sinx*cosx+2cosx=0 делим на  cosx

 sinx- 3sinx +2=0

2sinx=2

sinx=1

x=p/2+2pn,neZ