MATH 221 Lecture 11: Inverse Trig Functions

Evaluate the integral x2 + 2 x2 - x + 1/x2 + x + 1 dx. Calculate sin x/cos 3 x dx.

Using the definition of the derivative, show that d/dx x2 + 5x -7 = 2x +5 Using the power rule (or L 'Hopital's rule) will result in zero credit. Which of the following could be sin x/x dx? Why? -cosx/x2/2 + C -cos x/x - sinx / x2/2 + C -xcosx - sin x/ x2 + C none of these.