Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Eyad Group Title

If(2a^2 ,3b^2 ,4c^2 ,6d^2) in A.s ,,Prove That : 3b^2+4c^2 > 2^1/2 (2ac+3bd)

  • 2 years ago
  • 2 years ago

  • This Question is Closed
  1. Eyad Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    A.s=Arithmetic sequence .

    • 2 years ago
  2. Eyad Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    @experimentX :can u help plz :)

    • 2 years ago
  3. experimentX Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    \[ 3b^2+4c^2 > 2^{1/2} (2ac+3bd)\]

    • 2 years ago
  4. Eyad Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    yea ,thats right

    • 2 years ago
  5. experimentX Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    \[ 4c^2 - 2a^2 = 6d^2 - 3b^2 \] \( 4c^2 + 3b^2 = 6d^2 + 2a^2\)

    • 2 years ago
  6. experimentX Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    they all look like geometric mean

    • 2 years ago
  7. experimentX Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    \( 3b^2 > \sqrt{2a^2 4 c^2 }\) do similar for other .. you will get answer

    • 2 years ago
  8. Eyad Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    wait a min ,from where u got the last relation which is 3b^2 <(2a^24c^2)^1/2

    • 2 years ago
  9. experimentX Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Arithmetic mean is always greater than Geometric mean

    • 2 years ago
  10. Eyad Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    OH,k i got it ..I knew that rule before but never worked on it ,TY :D

    • 2 years ago
    • Attachments:

See more questions >>>

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.