1 sin(x) ------ + ------ + cos(x) tan(x) 1
1 ------ + cos(x) + sin(x) tan(x)
1/tan(x) + 1.0*sin(x) + cos(x)
1 + cos(x)*tan(x) + sin(x)*tan(x) --------------------------------- tan(x)
1 ___ / pi\ ------ + \/ 2 *sin|x + --| tan(x) \ 4 /
cos(x) + cot(x) + sin(x)