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

ton Group Title

y''-2y'-2y=0

  • one year ago
  • one year ago

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

    Solve r^2-2r-2=0

    • one year ago
  2. myininaya Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    If you have a_[n]*y^[n]+a_[n-1]*y^[n-1]+a_[n-2]*y^[n-2]+....+a_[0]*y=0 where the a's are constants and the number in the ^[ ] is which derivative we are referring to, then the first step is to solve a_[n]*r^n+a_[n-1]*r^(n-1)+....+a_[0]=0. If r is real and say r=pm a, then your solution will be y=c1*e^(at)+c2*e^(bt). If r is complex (or just includes the imaginary part), then your answer will involve cos(x) and sin(x) instead of exponentials.

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

    i need detailed answer..tnx

    • 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.