What is the integral of tan2x?
Find the integral of tan2x.
∫tan2xdx=∫sec2x-1dx∵sec2x-tan2x=1∫tan2xdx=tanx-x+C∵∫sec2xdx=tanx,∫1dx=x.
Hence, the required integral is ∫tan2xdx=tanx-x+C ,where C is a constant of integration .
What is the geometrical interpretation of indefinite integral?
What is integral of (ax+b)/(cx+d)