A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

cutiecomittee123

  • one year ago

bunch of pre calc questions please help asap!!!

  • This Question is Closed
  1. cutiecomittee123
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    If sectheta=5/3 and the terminal point determined by theta is in quadrant four then tantheta=4/3 costheta=3/5 sintheta=-2/5 csctheta=-5/4

  2. cutiecomittee123
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    which of these are true and how do you know?

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

    |dw:1443037467058:dw|

  4. cutiecomittee123
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    wait so can we use the pythagorean theorum?

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

    |dw:1443038865563:dw|

  6. cutiecomittee123
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so 3^2+4^2=25 and that means the other side of the traingle is 5

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

    \[\checkmark\]

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

    3-4-5 is the most basic/common/recogniseable Pythagorean triple

  9. cutiecomittee123
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    alright and then that means that the answers are tantheta=4/3 and costheta=3/5 right?

  10. cutiecomittee123
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @Irishboy123

  11. cutiecomittee123
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    but wait since its in quadrant four doesnt that mean that sin would be negative

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

    yeah don't rush in you know this?? |dw:1443039749879:dw|

  13. cutiecomittee123
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    no i do not know that

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

    |dw:1443039862180:dw|

  15. cutiecomittee123
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Alright

  16. cutiecomittee123
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so if its in the fourth quadrant does that mean that 4 and 5 are negtive?

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

    the hypoteneuse is always +ve in the 4th, 4 is -ve, 3 is +ve the CAST thing allows you to predict the sign of the trig function without even looking that far, eg only tan is -ve in the 3rd of course that is because, in the 3rd, both opposite and adjacent are -ve [and hypoteneouse is always +ve, as mentioned] but the CAST shortcut allows you to "just know"

  18. cutiecomittee123
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    okay so just -3, 4, and 5 are the sides of the triangle that we use to determine the sin cos tan sec csc and cot?

  19. cutiecomittee123
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i mean -4, 3, and 5

  20. cutiecomittee123
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @IrishBoy123

  21. cutiecomittee123
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    therefore costheta=3/5 and csctheta=-5/4

  22. 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.