Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

ranyai12

  • one year ago

Can someone please explain to me how r(t)=(1-t)<1,3,-2>+t<2,-1,3> became r(t)=<1+t,3-4t,-2+5t>

  • This Question is Closed
  1. ranyai12
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @Azteck can you lease help?!

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

    what are the these "<" signs doing there?

  3. ranyai12
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    theyre supposed to represent vectors

  4. ranyai12
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    the original question asks find a vectr equation and parametric equations for th line segment that joins the point P(1,3,-2) and Q(2,-1,3)

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

    I'm not understanding the vector parts. Sorry about this, but unfortunately, I'm not an expert at these sorts of questions. Maybe you should ask someone else. @whpalmer4 are you good at these questions at all?

  6. ranyai12
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i figured it out thanks sooo much though!

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

    hahah I didn't even help. Well done ranyai12. Excellent work from you. (Y)

  8. ranyai12
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    lol but you attempted to help which is more than enough! thanks again!

  9. whpalmer4
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[r(t) = (1-t)<1,3,-2> + t<2, -1, 3>\]You essentially treat it like distributing and collecting terms: \[r(t) = <1(1-t),3(1-t),-2(1-t)> + <2t,-t,3t> = <1-t+2t, 3-3t-t,-2+2t+3t> =\]\[= <1+t,3-4t,-2+5t>\]

  10. ranyai12
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yea i realized that thanks so much though! i at first thought it had to del with matrices which is why i got confused

  11. ranyai12
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    deal*

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

    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

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.