Quantcast

A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

rubyhunter

  • 2 years ago

find the sin(x+pi) in terms of x (HELP ME!!!!)

  • This Question is Open
  1. jishan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    - sinx

  2. rubyhunter
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    what does that mean ?

  3. rubyhunter
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    can you walk me through it

  4. jishan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    that means angle lies in 3rd quadrant.

  5. rubyhunter
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    i still dnt get it how do i plug it in

  6. rubyhunter
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    is it sin(x=180) = -sinx

  7. rubyhunter
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    or am i way off

  8. jishan
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    in 3rd quadrant sin ,cos,sec,cosec -ve but tan, cot +ve.

  9. rubyhunter
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    IM FREAKING LOST

  10. jayz657
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    using the trig identity sin(a+b) = sin(a)cos(b) + cos(a)sin(b) sin(x+pi) = sin(x)cos(pi)+ cos(x)sin(pi) cos(pi) = -1 sin(pi) = 0 and you get sin(x)(-1) + cos(x)(0) = -sin(x)

  11. Praja_01
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    sin(180+x)= -sinx since sin is symmetrically opposite.

  12. 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.