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- Integrate by partial fractions
- Integrate by substitution
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- 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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We can solve the integral $\int\frac{x}{x^2+4}dx$ by applying integration method of trigonometric substitution using the substitution
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$x=2\tan\left(\theta \right)$
Learn how to solve integration techniques problems step by step online. Integrate the function x/(x^2+4) from -1 to 2. We can solve the integral \int\frac{x}{x^2+4}dx by applying integration method of trigonometric substitution using the substitution. Now, in order to rewrite d\theta in terms of dx, we need to find the derivative of x. We need to calculate dx, we can do that by deriving the equation above. Substituting in the original integral, we get. The integral of the tangent function is given by the following formula, \displaystyle\int\tan(x)dx=-\ln(\cos(x)).