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| 5 9 13 17 21 3 7 11 15 19
| 22 cos(x) cos (x) cos (x) cos (x) cos (x) cos (x) cos (x) cos (x) cos (x) cos (x) cos (x)
| cot (x) dx = C - x - ------ - --------- - --------- - ----------- - ----------- - ----------- + --------- + --------- + ----------- + ----------- + -----------
| sin(x) 5 9 13 17 21 3 7 11 15 19
/ 5*sin (x) 9*sin (x) 13*sin (x) 17*sin (x) 21*sin (x) 3*sin (x) 7*sin (x) 11*sin (x) 15*sin (x) 19*sin (x)
$$-{{14549535\,\tan ^{20}x-4849845\,\tan ^{18}x+2909907\,\tan ^{16}x-
2078505\,\tan ^{14}x+1616615\,\tan ^{12}x-1322685\,\tan ^{10}x+
1119195\,\tan ^8x-969969\,\tan ^6x+855855\,\tan ^4x-765765\,\tan ^2x
+692835}\over{14549535\,\tan ^{21}x}}-x$$