A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

∫ (e^x)lnx dx =?

  • This Question is Closed
  1. Owlfred
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Hoot! You just asked your first question! Hang tight while I find people to answer it for you. You can thank people who give you good answers by clicking the 'Good Answer' button on the right!

  2. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    use integration by parts

  3. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Laplace20, are u sure u can get the answer by using integration by parts?????

  4. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    im never sure about anything. why dont you try it

  5. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Integration by parts impossible to solve it. 100% impossible!!!

  6. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    u = ln x , dv = e^x , du = 1/x , v = e^x = ln x * e^x - integral e^x *1/x

  7. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    nevermind, this cant be integrated

  8. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    this is not an elementary function

  9. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    algebraic, log, inverse trig, trig, exponential,

  10. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    what is this a trick question?

  11. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    no, this can be done using integration by parts , just you need to apply it twice

  12. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    its like how you integrate e^x sin(x) or e^(x)cos(x)

  13. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    contining from above, ie I (integral we want ) = ln x * e^x - integral e^x *1/x

  14. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    let u=e^x , dv = (1/x) dx

  15. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so du= e^x dx , and v= ln(x)

  16. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    SO I = e^x ln(x) - [ e^(x) ln(x) - integral ( e^x ln(x) dx ) ]

  17. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    but that integral e^x lnx is what we started with, it was "I" so I = I huh , thats a bit strange that method didnt work :|

  18. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.