1 / | | 4 | tan (3*x) dx | / 0
/ | 3 | 4 sin(3*x) sin (3*x) | tan (3*x) dx = C + x - ---------- + ----------- | 3*cos(3*x) 3 / 9*cos (3*x)
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=
202846220.342007
Use the examples entering the upper and lower limits of integration.