Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

BlizzardofFire

  • 2 years ago

s=1-1/3+1/9-...

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

    use formula : s= a/(1-r) with a=first term r=ratio=u2/u1=u3/u2

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

    huh?

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

    its a geometric progression with contant ratio(r)=-1/3 and its first term(a) is 1 hence we can use a formula for the sum of this g.p. as a(1-r)

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

    ok, a=1 and r=(-1/3)/1 = -1/3 plug in a=1 and r=-1/3 to that formula!

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

    soooo its 3/4??

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

    yup

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

    sorry i did a mistake in the formula it will be a/(1-r)

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

    do u do it the same way when the question is 4/3+2/3+1/3...

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

    yea, that's right.

  10. HELLSGUARDIAN
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yes here the ratio(r) is 1/2 ..

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

    k thx

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

    oke, what's answer do u get ?

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

    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

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.