integration of root a^2 +x^2, x^2 -a^2, a^2 -x^2
Integration of root a^2 +x^2, x^2 -a^2, a^2 -x^2 is given as $ \int \sqrt {a^2 – x^2} dx = \frac {1}{2} x \sqrt {a^2 – x^2} + \frac {1}{2} a^2 \sin^{-1} \frac {x}{a} + C$ $ \int \sqrt {a^2 + x^2} dx = \frac {1}{2} x \sqrt {a^2 + x^2} + \frac {1}{2} a^2 […]
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