Quantcast

A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

gerryliyana

  • 2 years ago

Help

  • This Question is Closed
  1. lillybeth123
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    huh?

  2. abb0t
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Is this a medical emergency? If so, please call your local emergency number.

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

    it's math emergency

  4. lillybeth123
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    wats ur question?

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

    These are the pictures that I've uploaded for my question

  6. lillybeth123
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    oh glob, sorry i cant help, thats too hard, bye. :)

  7. abb0t
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I vaguely remember doing this, but I think you want to use the exponential form of cosh and sinh to prove it.

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

    Yeah, noob google series expansion of hyperbolic cosine and sine

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

    So sin z is equal to some summation. You multiply it by i. Work out a few terms in the summation making sure to remember that i^2=-1 and try to simplify it to look like the sinh z formula.

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

    how about first one??

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

    For -1 < p < 1 prove that \[\sum_{n=0 }^{\infty} p^{n}\cos nx =\frac{ 1= pcos x }{ 1-2pcosx + p^2 }\]

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

    bleh too much effort

  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.