A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

(xlny+xy) if i differentiate that with respect to y... i think i get 0

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

    When you differentiate with respect to y, all you do is treat the \(x\) variable as a constant. Since \(\ln{y}\) doesn't differentiate to zero, and neither does \(y\), you shouldn't get zero.

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

    ok wat do i get

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

    cn you show me

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

    how to do it den

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

    So the derivative of \(\ln{y}\) is \(\frac{1}{y}\), and the derivative of \(y\) is \(1\). Does that help get you moving?

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

    He didn't say partial derivative

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

    i got the answer x/y+x

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

    This could be implicit differiention

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

    is that rite

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

    Yep, that's right. Unless myininaya is right about it being implicit differentiation. Are you learning about implicit differentiation now, or partial derivatives?

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

    If we aren't doing partial differentiation, the answer is x'lny+x/y+x'y+x

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

    implicit

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

    Since x is a function of y

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

    Have you heard of partial derivatives?

  15. 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.