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First Fundamental Theorem. If you were being sent to a desert island and could take only one equation with you, might well be your choice. Here is a calculus.

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Presentation on theme: "First Fundamental Theorem. If you were being sent to a desert island and could take only one equation with you, might well be your choice. Here is a calculus."— Presentation transcript:

1 First Fundamental Theorem

2 If you were being sent to a desert island and could take only one equation with you, might well be your choice. Here is a calculus textbook quote. CALCULUS by Ross L. Finney and George B. Thomas, Jr., ©1990.

3 The Fundamental Theorem of Calculus, Part 1 If f is continuous on, then the function has a derivative at every point in, and

4 First Fundamental Theorem: 1. Derivative of an integral.

5 2. Derivative matches upper limit of integration. First Fundamental Theorem: 1. Derivative of an integral.

6 2. Derivative matches upper limit of integration. 3. Lower limit of integration is a constant. First Fundamental Theorem:

7 1. Derivative of an integral. 2. Derivative matches upper limit of integration. 3. Lower limit of integration is a constant. New variable. First Fundamental Theorem:

8 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:

9 1. Derivative of an integral. 2. Derivative matches upper limit of integration. 3. Lower limit of integration is a constant.

10 The upper limit of integration does not match the derivative, but we could use the chain rule.

11 The lower limit of integration is not a constant, but the upper limit is. We can change the sign of the integral and reverse the limits.

12 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.

13 The Fundamental Theorem of Calculus, Part 2 If f is continuous at every point of, and if F is any antiderivative of f on, then (Also called the Integral Evaluation Theorem) We already know this! To evaluate an integral, take the anti-derivatives and subtract.

14 Acknowledgement I wish to thank Greg Kelly from Hanford High School, Richland, USA for his hard work in creating this PowerPoint. http://online.math.uh.edu/ Greg has kindly given permission for this resource to be downloaded from www.mathxtc.com and for it to be modified to suit the Western Australian Mathematics Curriculum. www.mathxtc.com Stephen Corcoran Head of Mathematics St Stephen’s School – Carramar www.ststephens.wa.edu.au 


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