The Product Rule Complete the warm-up on your notesheet
Objective To use the product rule for differentiation. TS: Making decisions after reflection and review
The Product Rule A number multiplied by a variable raised to a power. a variable raised to a power. Bad News: The Power Rule doesn’t work for a lot of derivatives. Good News: Right now you can find the derivative of functions like …
The Product Rule This function consists of two separate pieces multiplied together
The Product Rule What is the derivative of this function?
The Product Rule Does ? NO! Take each derivative
The Product Rule The derivative of a product is not equal to the product of the derivatives.
The Product Rule The derivative of a product must by calculated using the product rule:
The Product Rule 1.Imagine that the function is actually broken into 2 pieces.
The Product Rule 2. Leave first piece alone and derive second piece.
The Product Rule 3. Add: Leave second piece alone and derive first piece.
The Product Rule This is the derivative!
The Product Rule Example A:
The Product Rule
The Product Rule Examle B
The Product Rule
The Product Rule Example C
Conclusion Remember: The derivative of a product is the first times the derivative of the second plus the second times the derivative of the first.