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rettix
rettix asked in Science & MathematicsMathematics · 1 decade ago

need a little calc help please?

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

Update:

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

2 Answers

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  • Anonymous
    1 decade ago
    Favorite Answer

    5(ln IxI) + C

    5x^-1 =1/5x

    the derivative of lnx is 1/x

  • ironduke8159
    Lv 7
    1 decade ago

    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

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