A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

marigirl

  • one year ago

Differentiate with respect respect to w 4r^2=l^2+w^2

  • This Question is Closed
  1. marigirl
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I understand the right side will be \[ = 2l \frac{ dl }{ dw }+2w\] the left side shown to be zero in my model answers.. plz help

  2. marigirl
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @IrishBoy123

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

    is it given that L is a function of w, is r a constant?

  4. marigirl
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    im trying to figure out the maximum area of a rectangle inside a circle. so the above equation was used to express the radius

  5. marigirl
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    1 Attachment
  6. marigirl
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    now that i think of it, yes r is a constant i guess becuase i am after the maximum l and w in order to get the maximum area...

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

    yes radius is a constant in this problem, length and width are variables . that is why you have 0 when you take derivative of r^2

  8. phi
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    ***im trying to figure out the maximum area of a rectangle inside a circle*** if you allowed "r" to vary, then you are changing the circle (i.e. its size) and the problem makes no sense: what is the biggest rectangle I can put in a circle, if I am allowed to change the size of the circle? It makes more sense to ask the question: what is the biggest rectangle I can put in a circle that has a *fixed radius* r? in other words, we should treat r as a constant in this problem.

  9. marigirl
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Thank you!

  10. 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.