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

douglas12 Group Title

Determine whether the matrix has an inverse. If an inverse exists, find it. -5 -18 2 7

  • one year ago
  • one year ago

  • This Question is Closed
  1. Loser66 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    yes

    • one year ago
  2. jdoe0001 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    so, what is it?

    • one year ago
  3. jdoe0001 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    hehe, don't leave us in suspense :P

    • one year ago
  4. douglas12 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    So how do you find the inverse of that matrix

    • one year ago
  5. jdoe0001 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    well, let's find the DETERMINANT first, can you find the determinant of that 2x2 matrix?

    • one year ago
  6. Loser66 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    read it,at the middle page http://www.mathsisfun.com/algebra/matrix-inverse.html

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

    @douglas12 If you are allowed to use technology in your work, check out the online matrix inverse calculator at http://www.bluebit.gr/matrix-calculator/

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

    @douglas12 Post what you get as the inverse.

    • 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.