Question

решите уравнение)
$3sin ^{2} x+4sinxcosx-3=0$

Answer 1

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Answer 2

4sinxcosx-3cos^2x=0
cosx(4sinx-3cosx)=0
cosx=0
x=пи/2+пиK
4sinx=3cosx
tgx=3/4
x=arctg3/4+пиK