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Kelumptus

  • 3 years ago

integral(-1/(x ln x))dx = Integral(1/y) dy

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  1. Kelumptus
    • 3 years ago
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    integral(-1/(x ln x))dx = Integral(1/y) dy = ln(ln(x)) = ln(y) +c = ln(x) = y +c Is this correct?

  2. hartnn
    • 3 years ago
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    u missed a *minus* sign integral(-1/(x ln x))dx = Integral(1/y) dy =- ln(ln(x)) = ln(y) +c =- ln(x) = y +c

  3. Kelumptus
    • 3 years ago
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    oh... hehe apart from that sorry =)

  4. hartnn
    • 3 years ago
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    yes, apart from that its absolutely correct.

  5. Kelumptus
    • 3 years ago
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    because the site i am reading has "y = c ln x" And that doesn't seem right...?

  6. hartnn
    • 3 years ago
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    no, i don't think thats correct.

  7. Kelumptus
    • 3 years ago
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    He even misses the minus sign also. Thanks for confirming this for me.

  8. hartnn
    • 3 years ago
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    ok, welcome ^_^

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