Category:Primitive of Reciprocal of x squared plus a squared

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This category contains pages concerning Primitive of Reciprocal of x squared plus a squared:


Arctangent Form

$\ds \int \frac {\d x} {x^2 + a^2} = \frac 1 a \arctan \frac x a + C$


Arccotangent Form

$\ds \int \frac {\d x} {x^2 + a^2} = -\frac 1 a \arccot \frac x a + C$