6.1 Integration By Parts Flashcards
Integrating by parts is to integration what _________ is to differentiation
Product Rule
Formula for Integration by Parts
∫udv = uv - ∫vdu
Integration by Parts Steps
1) select a function to serve as u, which will give you a dv
2) differentiate u and integrate dv
3) Plug them into the formula uv - ∫vdu
4) Integrate the final term, repeating if necessary
How do you know you’ve selected the proper u function?
1) u is simpler when differentiated
2) dv is easily integratable
What do you do when given a single function?
u = function, dv = dx
How can you tell when you have a boomerang IBP problem?
exponential function multiplie by trigonometric function
Steps of a boomerang Integration by parts problem
1) solve normally via IBP
2) Repeat IBP, which should give you the original integral back as the last term
3) Replace the original integral with L
4) Solve for L