need a little calc help please?

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Could someone please tell me what the anti derivative of 5x ^ (-1) is , or give me a hint of some kind?

2007-01-14 07:14:48 · 2 answers · asked by rettix 3 in Science & Mathematics ➔ Mathematics

Thanks for the quick responses guys, problem worked out fine now.

2007-01-14 08:04:52 · update #1

5(ln IxI) + C

5x^-1 =1/5x
the derivative of lnx is 1/x

2007-01-14 07:18:44 · answer #1 · answered by Anonymous · 0⤊ 0⤋

Perhaps it would help if you used the fact that x^-1 = 1/x
So 5x^-1=5/x
Then int(5/x)dx = 5*int(dx/x) = 5lnx +C

2007-01-14 15:24:51 · answer #2 · answered by ironduke8159 7 · 0⤊ 0⤋