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

LeoMessi Group Title

How do I use the quotient rule on this function: (4x − 2) / (x2 + 1) ?

  • 3 years ago
  • 3 years ago

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

    \[ \frac{4x-2}{x^{2}+1} \]

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

    \[f(x) = \frac{g(x)}{h(x)} => \frac{h'(x) * g(x) - g'(x)*h(x)}{[h(x)]^2} \]

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

    \[f(x) = \frac{Top Func.}{Bottom Func} => \frac{Deriv. of Bottom Func * Top func. - Deriv. of Top func. * Bottom Func}{[Bottom Func]^2} \]

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

    so here: g(x) = 4x-2, h(x) = x^2 + 1

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

    OH, cool, I'll give it a shot: g(x) = (4x-2), h(x) = x^2+1. g'(x) = 4, h'(x) = 2x

    • 3 years ago
  6. LeoMessi Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    so: \[\frac{2x * (4x-2) - 4*(x^2+1)}{[(x^2+1)]^2} \]

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

    yes!

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

    you can try to simplify here too

    • 3 years ago
  9. Sahsanud Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    d/dx= ((2x)(4x-2)-(4)(x^2+1))/ (x^2+1)^2 =4x^2-4x-4/ (x^2+1)^2

    • 3 years ago
  10. ndcuong1980 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Go here http://www.wolframalpha.com/input/?i=integrate+%284x%E2%88%922%29%2F%28x^2%2B1%29 and click "show steps"

    • 3 years ago
  11. rosswante Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    4/(x^2+1)-(2*(4*x-1))*x/(x^2+1)^2

    • 3 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.