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

yamanaha

need help...first time on site: limit to inifinity of this n^.5 plus n^(1/3) divided by n + 2n^(2/3) book pulled out n to the neg .5 not sure why. Am thinking there is a better way? Don't you always divide by highest power?

  • one year ago
  • one year ago

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

    IMO, if you divide everything by n^(2/3), you get:\[\frac{ n^{-\frac{1}{6}} +n^{-\frac{1}{3}}}{ n^{\frac{1}{3}}+2 }\]Now, if n goes to infinity, the powers of n in the numerator go to 0, the denominator goes to infinity, so the whole thing goes to 0. So, I think you're right!

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

    |dw:1360016424558:dw| I believe you divide by the lowest power, which is 1/3. so it would be.

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

    |dw:1360016724321:dw| At this point 1 and 2n^(1/3) do not matter.

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

    |dw:1360016863153:dw| so the n's cancel out, that leaves (1/6)-(2/3) which equals -1/2

    • one year 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.