ws28 - WORKSHEET 28 - Fall 1995 1. Consider the following...

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Unformatted text preview: WORKSHEET 28 - Fall 1995 1. Consider the following definition: Definition. If f is a function defined on [ a, b ] and the sums n i =1 f ( c i )( x i x i 1 ) approaches a certain number as the mesh of partitions of [ a, b ] shrinks toward 0 (no matter how the sampling number c i is chosen in [ x i 1 , x i ]), that certain number is called the definite integral of f over [ a, b ] or the definite integral of f from a to b . It is denoted Z b a f ( x ) dx. in short, the definite integral of f over [ a, b ] is lim mesh n X i =1 f ( c i ) x i . a) Draw a picture (or sequence of pictures with progressively finer partitions) explaining this definition. b) Notice that the picture you have drawn gives only one of many ways to think of the definite integral. Describe other applications of this concept. (Hint: Dr. McAdams lecture yesterday!!! Can you think of others, though?) c) Give an example of a function for which the definite integral is not defined....
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This note was uploaded on 04/11/2011 for the course MATH 1400 taught by Professor Grether during the Spring '08 term at North Texas.

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ws28 - WORKSHEET 28 - Fall 1995 1. Consider the following...

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