Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

babydoll332

  • 3 years ago

Find the exact value of cot-1(1). please step by step :)

  • This Question is Closed
  1. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    what is cot using sin and cos?

  2. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    wait wat? explain... please

  3. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    Do you know what cot means?

  4. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    cotangent

  5. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    Yes, but what is cotangent?

  6. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    sin/tan

  7. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    cos/sin

  8. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    Its cos/sin

  9. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    |dw:1352671301171:dw|

  10. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    idk wat to do next...

  11. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    |dw:1352671590676:dw|

  12. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    pi

  13. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    No.

  14. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    |dw:1352671674439:dw|

  15. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    pi/2

  16. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    No, what is cos in general?

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

    Do you still need help with this?

  18. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yess

  19. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    cos is x sin is y

  20. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    wow ok im sorry u have to do the basic with me

  21. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    |dw:1352671946433:dw|

  22. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    ok

  23. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    i understood that

  24. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    OK, good.

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

    Allright, So you are given cot^-1(1) The cot^(-1) means to find the angle where cot is 1 Cot is also (cos/sin) So if you look at the unit circle, where does cos equal 1? So cos is 2pi at 1 and sine is pi/2 at 1 If you put 2pi/pi/2 you get pi/4 So cos^-1(1) is pi/4

  26. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    You can follow @zordoloom, but im not sure what he's doing. So your choice.

  27. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    how would i get 2pi/pi=4pi

  28. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    It doesnt equal 4pi. That would equal 2

  29. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    If you put 2pi/pi/2 you get pi/4

  30. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    No, you get 1.

  31. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    and where do i find 1 on the unit circle

  32. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    |dw:1352672476549:dw|

  33. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    i know its 45degree but idk how?

  34. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    gimme a sec

  35. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    like idk how how cos 1 = pi/4 i get how to get it but not how u get thru the unit circle

  36. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    what are the coordinates of pi/4 on the unit circle?

  37. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    no how he got this

  38. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    So if you look at the unit circle, where does cos equal 1? So cos is 2pi at 1 and sine is pi/2 at 1

  39. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    cos equals one at 0 and 2pi

  40. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    then somehow he got 4/p

  41. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    dont write anything, just read what i write

  42. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    okkkk

  43. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    |dw:1352672770099:dw|

  44. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    sin=1 at pi/2

  45. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    Shhh..dont write.

  46. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    |dw:1352672843682:dw|

  47. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    |dw:1352672885447:dw|

  48. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    |dw:1352672912951:dw|

  49. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    ohhhhh

  50. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    ok i get it

  51. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    Ok, r u sure?

  52. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    god ur amazing i would have been here for a few hours

  53. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yes i ddint multiply them

  54. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    thanks, do you want me to give another example..so u can see if u get it right?

  55. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    um ya an easy 1 please

  56. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    OK, gimme a sec

  57. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    \[ \cot^{-1} (-1)=?\]

  58. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    pi

  59. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    No.

  60. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    3pi/4

  61. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    Yes!

  62. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    question is cot always on the 3rd quadrant?

  63. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    No, the original question you asked, the answer was pi/4 (thats in the 1st quadrant)

  64. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    but thats for cos

  65. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    not cot

  66. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    cos=1st cot=3rd

  67. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    No, all quadrants apply for any trig identity.

  68. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    oh i know but for those mostly

  69. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    The answer is still no.

  70. babydoll332
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    ok thanks :)

  71. Brittni0605
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    Np.

  72. 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