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

Rarely Tested

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 difference of squares.

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