### 5.28.9 Simplify complex exponentials : tsimplify

tsimplify simplifies transcendental expressions
by rewriting the expression with complex exponentials.

It is a good idea to try other simplification instructions
and call tsimplify if they do not work.

Input :

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

Output :

((exp((i)*x))`^`

4+1)/(exp((i)*x))`^`

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