x*tan(x) + log(cos(x)) + 6
x*tan(x) + log(cos(x)) + 6
/ 2 \ sin(x) x*\1 + tan (x)/ - ------ + tan(x) cos(x)
2 2 sin (x) / 2 \ 1 + 2*tan (x) - ------- + 2*x*\1 + tan (x)/*tan(x) 2 cos (x)
/ 2 3 \ | / 2 \ sin(x) sin (x) / 2 \ 2 / 2 \| 2*|x*\1 + tan (x)/ - ------ - ------- + 3*\1 + tan (x)/*tan(x) + 2*x*tan (x)*\1 + tan (x)/| | cos(x) 3 | \ cos (x) /