Integration Flashcards
1
Q
When do we use the chain rule for integration?
What is the third extra step we need to take over and above ‘normal’ integrating?
A
When integrating a term in a bracket to a power where the bracketed term has its own derivative.
We need to, as step 3 of integrating, divide by the derivative of the bracket too.
2
Q
Why do we integrate?
A
(1) Question says so.
(2) To find the area between a function and the x-axis.
(3) To find a function from it’s derivative.
3
Q
How do you integrate a term?
A
(1) Increase the power by one
(2) Divide by the new power
4
Q
What must be added when writing the integrate symbol?
What must by added to our answer if we’re not working out an area?
A
dx or +c (indefinite integrals only)
