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IfI=int(dx)/((2a x+x^2)^(3/2)),then I is...

`IfI=int(dx)/((2a x+x^2)^(3/2))`,then `I` is equal to`` (a)`-(x+a)/(sqrt(2a x+x^2))+c` (b) `-1/a(x+a)/(sqrt(2a x+x^2))+c` (c)`-1/(a^2)(x+a)/(sqrt(2a x+x^2))+c` (d) `-1/(a^3)(x+a)/(sqrt(2a x+x^3))+c`

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