Question 1180238
<br>
{{{cos(x)*sin(x)=sin(2x)}}}<br>
Use the double angle formula for sine on the right.<br>
{{{cos(x)*sin(x)=2sin(x)cos(x)}}}<br>
Collect like terms.<br>
{{{0 = sin(x)*cox(x)}}}<br>
{{{sin(x)=0}}} or {{{cos(x)=0}}}<br>
ANSWER: 0, pi/2, pi, and 3pi/2<br>