Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

DLS

  • 3 years ago

find theta!

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

    \[\LARGE \sqrt{3}\sin \theta-\cos \theta=2\]

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

    \(\LARGE (\sqrt{3}/2)\sin \theta-(1/2)\cos \theta=2/2 \)

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

    you're the man!

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

    now write cos a = \sqrt 3/2 ,sin a =1/2

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

    where a=...?

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

    60

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

    pi/3

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

    no.

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

    oh sorry!!

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

    pi/6

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

    sin ... = 1/2 ?

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

    yes.

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

    30 degrees

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

    what is \(cos 30sin \theta-sin30 cos \theta=..?\)

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

    i messed up u,u

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

    sin(A-B)

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

    |dw:1356774577698:dw|

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

    sin [\(\theta\)-30] = 1 = sin 90

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

    got that ^ ?

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

    i didnt get that diag! but yes what u said

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

    okay got the diag too

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

    so, theta =... ?

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

    I was drawing the triangle with its values 0_0

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

    pi/2 right?what else :/

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

    |dw:1356774667353:dw|

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

    that means , you didn't get this... sin [θ-30] = 1 = sin 90

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

    im getting embarassed with so many people viewing this ques lloll

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

    We are all curious!

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

    Interesting question :P

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

    dls, write the step till how much u understood totally.

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

    okay

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

    why did we interchange the values cos a = \sqrt 3/2 ,sin a =1/2? we had sin with sqrt 3/2 and cos with 1/2

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

    when did we have sin with sqrt 3/2 ?? and you can take that also, then u have to use a different formula.

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

    ur first post O_O

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

    \(\LARGE (\sqrt{3}/2)\sin \theta-(1/2)\cos \theta=2/2\) \(\LARGE \cos 30\sin \theta-\sin 30\cos \theta=1\) \(\sin(\theta-30)=sin 90 \\ \theta =...?\)

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

    120?

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

    yes, u got it ?

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

    yes..much better when u wrote that together !! and we had less people lol

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

    we have only ONE possible value?

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

    okay thats obv..thanks! and thanks to the spectators >>

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

    u want general expression ?

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

    sure

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

    but thats not reqd.i just wanted to know the possible values of theta from 0 to 2pi

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

    then only 120

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

    yes..thats it!thanks!

  46. 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