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PLEASE help me with this as SOON as possible:

find the integral of
x2-x+1/√x dx

2007-02-22 15:37:39 · 2 answers · asked by stingray36lvr 2 in Science & Mathematics Mathematics

sorry...i didn't specify that the quadratic is all divided by the square root x !!!!

2007-02-22 18:47:26 · update #1

2 answers

I assume that the original expression was
(x2-x+1/√x) dx
integral of x2 dx is 1/3x^3 + C1
integral of -x dx is -1/2x^2 +C2
integral of 1/√x=x^(-1/2) is -2x^(1/2)+C3=-2√x+ C3
the combined integral is
1/3x^3 -1/2x^2 -2√x +C

2007-02-22 15:49:20 · answer #1 · answered by anonimous 6 · 0 0

You just take the antiderivative of (x^2-x+1/√x)dx, which would be
(1/3)x^3-(1/2)x^2+2√x+C
where C is any constant

2007-02-23 00:00:41 · answer #2 · answered by dr_chee 1 · 0 0

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