A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

chrisplusian

  • one year ago

Suppose that u and v are orthogonal vectors in R^n. Find the value of the expression <3u-v. 3u+v>.

  • This Question is Closed
  1. chrisplusian
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    The notation used here "<x,y>" is the way they represent the dot product of vector x and vector y in my current textbook

  2. IrishBoy123
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    you can distribute in the dot product so use FOIL and then bear in mind that \(\mathbf u \bullet \mathbf v = 0 \) and vice versa

  3. IrishBoy123
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    if that worries you, start with this idea and expand it out to 4 vectors \[ \mathbf A \cdot ( \mathbf B + \mathbf C ) = \mathbf A \cdot \mathbf B + \mathbf A \cdot \mathbf C .\] now let \(\mathbf A = \mathbf D + \mathbf E \)

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

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

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.