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Integration By Trigonometric Substitution

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We’ve got two techniques in our bag of tricks, the substitution rule and integration by parts, so it’s time to learn the third and final, and that’s integration by trigonometric substitution. This is probably the toughest one, and it only works in very specific circumstances, but when those circumstances arise, it works like a charm! So let’s make sure we know how to execute this bad boy.

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