the Primitive of

so why does the Primitive of and not ?

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- May 15th 2013, 05:24 AMalyosha2Primitive of (a^2 + x^2)^-1
the Primitive of

so why does the Primitive of and not ? - May 15th 2013, 05:40 AMBobPRe: Primitive of (a^2 + x^2)^-1
is a constant. Integrate a constant and you get ..... . There shouldn't even be an arctan there.

- May 15th 2013, 05:57 AMalyosha2Re: Primitive of (a^2 + x^2)^-1
ahh so a is always the constant and x is always the variable. OK, problem solved.