Integral of sin(7x)cos(4x) dx
The solution
The graph
7 7*cos(4)*cos(7) 4*sin(4)*sin(7)
-- - --------------- - ---------------
33 33 33
−334sin(4)sin(7)−337cos(4)cos(7)+337
=
7 7*cos(4)*cos(7) 4*sin(4)*sin(7)
-- - --------------- - ---------------
33 33 33
−334sin(4)sin(7)−337cos(4)cos(7)+337
7/33 - 7*cos(4)*cos(7)/33 - 4*sin(4)*sin(7)/33
Use the examples entering the upper and lower limits of integration.