Transform tan(x) into sin(x)/cos(x) : tan2sincos

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Transform tan(x) into sin(x)/cos(x) : `tan2sincos`

tan2sincos takes as argument an expression containing trigonometric functions.
tan2sincos replaces tan(x) by $\displaystyle {\frac{{\sin(x)}}{{\cos(x)}}}$ , in this expression.
Input :

tan2sincos(tan(2*x))

Output :

sin(2*x)/cos(2*x)

giac documentation written by Renée De Graeve and Bernard Parisse