4sin^{2}x+3sinx=0" alt="2(1- 2sin^{2}x )=3sinx+2 => 4sin^{2}x+3sinx=0" align="absmiddle" class="latex-formula"> =>
x= \pi n,x=arcsin( -\frac{3}{4} )+2\pi n" alt="sinx(4sinx+3)=0 => x= \pi n,x=arcsin( -\frac{3}{4} )+2\pi n" align="absmiddle" class="latex-formula">,