Integration of $$\sqrt{x^2+a^2}$$

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Integration of $$\sqrt{x^2+a^2}$$

$$\int\sqrt{x^2+a^2}\,dx=\frac{x}{2}\sqrt{x^2+a^2}+\frac{a^2}{2}\ln|x+\sqrt{x^2+a^2}|+C$$

Usage

- Used for integrals involving the square root of a sum of squares.

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