A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

Can someone please check my answers and give me feedback? I'm not completely sure about this. Thanks in advance! :) https://i.imgur.com/45PtWqo.png

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

    any point on that unit circle (x,y) = (cos(t), sin(t))

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

    since the hypotenuse is 1

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

    Why did you make cos(t) negative?

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

    you did all the work right, just use cos(t) as a positive value instead

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

    the x coordinate of P is +

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

    Thanks @DanJS! I corrected cos(t) to 15/17. Is that the only thing that I need to change?

  7. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    hint: tangent = sine/cosine

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

    Wait, so would tan(t) be 8/15 then? @jim_thompson5910

  9. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    tangent is positive, yes

  10. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    cos is positive ---> sec is positive tan is positive ---> cot is positive

  11. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    the reciprocal identities have the same sign together

  12. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    in a nutshell, everything is positive in Q1

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

    +++!

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

    I removed all the negatives and made them all positives, so I think I should be good. I think I may have misread something and thought one of the points was negative. Thanks for the help! :D

  15. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    no problem

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

    welcome

  17. 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.