Integration by Parts & Trig Functions Chapter 7.1 March 22, 2007 Slideshow and powerpoint viewer: Integration by Parts Evaluate: y 3 5 ∫y e ∫udv =uv−∫vdu dy Choose u (to different

Trig Functions: (also on Day 10) Recall that when a trig integral has ODD powers, we save one term for the “du” and replace the remaining even powers with: sin 2 x =1 −cos2 x cos 2 x =1 −sin2 x And when a trig integral has EVEN powers, we use the following trig identities to integrate. 1 sin 2 x = (1 −cos(2 x)) 2 1 cos 2 x = (1 + cos(2 x)) 2