Calculus

Lesson 27

Ln(x) and Integration

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            as we saw in the last section,  ,  so then we can also see that

                                                          and                

                        a couple things of note:  first, this IS different from our definition, since our

                        definition of ln(x) involved a definite intergral.  Second, note that we MUST put

                        absolute value bars around the argument of the log, since we don't immediately

                        know whether we are talking about being under the curve  or .

                        Examples:    

On to Lesson 28 - Inverse Functions

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