Question 1105276
{{{sin(2x)=2sin(x)cos(x)}}} is a popular trigonometric identity.
{{{sin(2x)-cos(x)=0}}}
{{{2sin(x)cos(x)-cos(x)=0}}}
{{{(2sin(x)-1)cos(x)=0}}}
{{{system(2sin(x)-1=0,"or",cos(x)=0)}}} --> {{{system(sin(x)=1/2,"or",x=pi/2,"or",x=3pi/2)}}} --> {{{highlight(system(x=pi/6,"or",x=5pi/6,"or",x=pi/2,"or",x=3pi/w))}}}