Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Yahoo!

A+B = 5 pie/4, ( (1+cotA) ( 1 + cotB) )/(cotAcotB) = ?

  • one year ago
  • one year ago

  • This Question is Closed
  1. hartnn
    Best Response
    You've already chosen the best response.
    Medals 2

    ( (1+cotA) ( 1 + cotB) )/(cotAcotB) = (1+cot A + cot B + cot A cot B) / cotA cot B now separate the denominator.

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

    tanAtanB + TanA + tanB + 1

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

    what ?

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

    = (1+cot A + cot B)/cotAcot B + (cot A cot B) / cotA cot B = (1+cot A + cot B)/cotAcot B + 1

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

    that '1' will be a trouble...

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

    cot (A+B) =.... ?

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

    ok, lets work with tan tan(A+B) = tan 5pi/4 = ... ?

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

    tan 5pi/4=1

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

    tan(A+B) = (tan A+tan B) /(1+tan A. tan B) = ...

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

    tan(A+B) = (tan A+tan B) /(1-tan A. tan B)

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

    oops, tan(A+B) = (tan A+tan B) /(1-tan A. tan B) =1 which gives tan A+tan B = 1-tan A tan B

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

    so, tanAtanB + TanA + tanB + 1=...?

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

    tanAtanB + TanA + tanB + 1= tanAtanB +1-tan Atan B+ 1=2

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

    Yup... thxx...

    • one year ago
    • Attachments:

See more questions >>>

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.