Integrals of Trig Functions Using Logs

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7. 4.6 trig integrals using ln feb 16.notebook 1 February 16, 2017 Integrals of Trig Functions Using Logs Recall: Trig Derivatives Trig Integrals Note: Since the derivative of trig function does NOT always yield another basic trig function we have basic trig functions that do NOT have integral formulas. Problem: BASIC TRIG Integrals Another application of logarthmic integration is deriving formulas of integration for and all other secondary trig functions namely: , , (Makes sense since these all can be expressed as rationals) Integrate: A) B)

Transcript of Integrals of Trig Functions Using Logs

7. 4.6 trig integrals using ln feb 16.notebook

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February 16, 2017

Integrals of Trig Functions Using LogsRecall:Trig Derivatives Trig Integrals

Note: Since the derivative of trig function does NOT always yield another basic trig function we have basic trig functions that do NOT have  integral formulas.

Problem:

BASIC TRIG Integrals

Another application of logarthmic integration is deriving formulas of integration for            and all other secondary trig functions namely:        ,        ,         (Makes sense since these all can be expressed as rationals)

Integrate:

A) B)

7. 4.6 trig integrals using ln feb 16.notebook

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February 16, 2017

A) B)

Important: Especially in trig if integration by substitution is not working, try re­writing the  function into a form for which integration is possible using all your trig identities and formulas:(

C) D)

7. 4.6 trig integrals using ln feb 16.notebook

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February 16, 2017

Homework

pg 351­352

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