trigtan takes as argument an expression
containing trigonometric functions.
trigtan simplifies this expression with the formula :
sin(x)2+cos(x)2=1, tan(x)=sin(x)/cos(x) and
tries to rewrite the expression only with tangents.
Input :
^4+cos(x)^2+1)Output :
^2/(1+(tan(x))^2))^2+1/(1+(tan(x)^2)+1Output, after simplification with normal :
^4+3*tan(x)^2+2)/(tan(x)^4+2*tan(x))^2+1)