Fundamental Theorems of Calculus 6.4
The First (second?) Fundamental Theorem of Calculus If f is continuous on, then the function has a derivative at every point in, and
First Fundamental Theorem: 1. Derivative of an integral.
2. Derivative matches upper limit of integration. First Fundamental Theorem: 1. Derivative of an integral.
2. Derivative matches upper limit of integration. 3. Lower limit of integration is a constant. First Fundamental Theorem:
1. Derivative of an integral. 2. Derivative matches upper limit of integration. 3. Lower limit of integration is a constant. New variable. Second Fundamental Theorem:
1. Derivative of an integral. 2. Derivative matches upper limit of integration. 3. Lower limit of integration is a constant. The long way: First Fundamental Theorem:
Example Applying the Fundamental Theorem
1. Derivative of an integral. 2. Derivative matches upper limit of integration. 3. Lower limit of integration is a constant.
Example Variable Lower Limits of Integration
Example The Fundamental Theorem with the Chain Rule
Neither limit of integration is a constant. It does not matter what constant we use! (Limits are reversed.) (Chain rule is used.) We split the integral into two parts.
Second (first?) FTOC
How to Find Total Area Analytically