Simplify : simplify

simplify simplifies the expression.
As with all automatic simplifications, do not expect miracles, you will have to use specific rewriting rules if it does not work.
Input :

simplify((sin(3*x)+sin(7*x))/sin(5*x))

Output :

4*(cos(x))^2-2

Warning simplify is more efficient in radian mode (check radian in the cas configuration or input angle_radian:=1).