A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

Can someone explain why tanπ=0 doesn't imply that arctan0=π?

  • This Question is Closed
  1. myininaya
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    it does

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

    That's what I thought. Thank you.

  3. myininaya
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    what maybe i'm wrong arctan0=0

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

    Oh dear...I was wrong then also...That makes sense because zero is normally always zero when plugged into a trig function.

  5. myininaya
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    cos(0)=1

  6. myininaya
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    arctan is the inverse of tan its weird when you take arctan of both sides it should still hold unless I'm missing something

  7. myininaya
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    arctan(tanpi)=arctan(0) pi=arctan(0)

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

    omg i totally forgot we have to restrict the domain of tan so that tan would have inverse and pi is outside that domain

  9. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    omg...SHOOT ME!

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

    for reals tan is not one to one so we have to make it one to one so it does have a freaking inverse

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

    i'm such an idiot

  12. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    YOU?! At least you are able to figure this out!!! I can't for the life of me! :D

  13. 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.