Question 329494
It's not an equation, it's an expression.
{{{sin(theta)=1/2}}}
Two solutions:
{{{theta=30}}} and {{{theta=150}}}
{{{cos(30)=sqrt(3)/2}}}
{{{cos(150)=-sqrt(3)/2}}}
{{{cos(sin^(-1)(1/2))=0 +- sqrt(3)/2}}}