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(tan(5*x)*tan(5*x))'The calculation above is a derivative of the function f (x)
(tan(5*x))'*tan(5*x)+tan(5*x)*(tan(5*x))'
((5*x)'/((cos(5*x))^2))*tan(5*x)+tan(5*x)*(tan(5*x))'
(((5)'*x+5*(x)')/((cos(5*x))^2))*tan(5*x)+tan(5*x)*(tan(5*x))'
((0*x+5*(x)')/((cos(5*x))^2))*tan(5*x)+tan(5*x)*(tan(5*x))'
((0*x+5*1)/((cos(5*x))^2))*tan(5*x)+tan(5*x)*(tan(5*x))'
(5/((cos(5*x))^2))*tan(5*x)+tan(5*x)*(tan(5*x))'
(5/((cos(5*x))^2))*tan(5*x)+tan(5*x)*((5*x)'/((cos(5*x))^2))
(5/((cos(5*x))^2))*tan(5*x)+tan(5*x)*(((5)'*x+5*(x)')/((cos(5*x))^2))
(5/((cos(5*x))^2))*tan(5*x)+tan(5*x)*((0*x+5*(x)')/((cos(5*x))^2))
(5/((cos(5*x))^2))*tan(5*x)+tan(5*x)*((0*x+5*1)/((cos(5*x))^2))
(5/((cos(5*x))^2))*tan(5*x)+tan(5*x)*(5/((cos(5*x))^2))
10*tan(5*x)*(cos(5*x))^-2
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