срочно!!!!!!!!!!! 2cos^2x-3sinxcosx+sin^2x=0

Question

срочно!!!!!!!!!!! 2cos^2x-3sinxcosx+sin^2x=0

Answer 1

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

2-3sinx/cosx+(sinx/cosx)^2=0

tg^2x=t

t^2-3t+2=0

t1=1

t2=2

x=П/4+Пk

x=arctg(2)+Пk