Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

hothand621

  • one year ago

(sinA+cosAtanB)/(cosA-sinAtanB)=tan(a+b)

  • This Question is Closed
  1. AravindG
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    Multiply with cos B on numerator and denominator.

  2. hothand621
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    explain?

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

    you will se that you get something similar to previous question

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

    (sinA+cosAtanB) X cos B ________________________ (cosA-sinAtanB) X cos B

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

    Try opening up the brackets .

  6. hothand621
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok, so you get this: \[(sinAcosB+cosAcosBtanB)/(cosAcosB-sinAcosBtanB)\] so what next?

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

    tan B X cos B = ?

  8. hothand621
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ?

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

    \[\tan B \times \cos B= .....\] Can you find that ?

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

    @hothand621 ?

  11. hothand621
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ummmm no, i suck at harder trig

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

    Hint: tan B = sinB / cosB

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

    ^^

  14. hothand621
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes and that doesnt equal tan(a+b)

  15. hothand621
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    it equals sinB

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

    Simplify it first :) No need to be hurry :)

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

    yep replace it in your question

  18. hothand621
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    replace what though

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

    (sinA+cosAtanB) X cos B = sin A cos B+cos A sin B !

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

    Seen that somewhere?

  21. hothand621
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes

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

    Can you do it now ?

  23. hothand621
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ummm give me a minute

  24. hothand621
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i think so

  25. hothand621
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    what happens to the denominator?

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

    Open up the brackets !

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

    (cosA-sinAtanB) X cos B=.........

  28. hothand621
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    thanks man, solved :)

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

    Great ! yw :)

  30. Not the answer you are looking for?
    Search for more explanations.

    Search OpenStudy
    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

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.