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- Integrate by partial fractions
- Integrate by substitution
- Integrate by parts
- Integrate using tabular integration
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- Weierstrass Substitution
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- Integrate using basic integrals
- Product of Binomials with Common Term
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Rewrite the expression $\frac{1}{x^2-4x-1}$ inside the integral in factored form
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$\int\frac{1}{\left(x-2\right)^2-5}dx$
Learn how to solve problems step by step online. Find the integral int(1/(x^2-4x+-1))dx. Rewrite the expression \frac{1}{x^2-4x-1} inside the integral in factored form. We can solve the integral \int\frac{1}{\left(x-2\right)^2-5}dx by applying integration by substitution method (also called U-Substitution). First, we must identify a section within the integral with a new variable (let's call it u), which when substituted makes the integral easier. We see that x-2 it's a good candidate for substitution. Let's define a variable u and assign it to the choosen part. Now, in order to rewrite dx in terms of du, we need to find the derivative of u. We need to calculate du, we can do that by deriving the equation above. Substituting u and dx in the integral and simplify.