MathAnalysisCalculusIntegrals

Trigonometric Substitution

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Consider the following integral

$I = \int \frac{1}{x^2-1} \ dx$ Which trigonometric substitution should be performed next?

Select one option from the list

x = \sec(\theta) \cdot \tan(\theta)

x = \csc(\theta)

x = \cos(\theta)

x = \sec(\theta)

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