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

babydoll332

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

  • one year ago
  • one year ago

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

    what is cot using sin and cos?

    • one year ago
  2. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    wait wat? explain... please

    • one year ago
  3. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    Do you know what cot means?

    • one year ago
  4. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    cotangent

    • one year ago
  5. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    Yes, but what is cotangent?

    • one year ago
  6. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    sin/tan

    • one year ago
  7. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    cos/sin

    • one year ago
  8. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    Its cos/sin

    • one year ago
  9. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1352671301171:dw|

    • one year ago
  10. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    idk wat to do next...

    • one year ago
  11. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1352671590676:dw|

    • one year ago
  12. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    pi

    • one year ago
  13. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    No.

    • one year ago
  14. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1352671674439:dw|

    • one year ago
  15. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    pi/2

    • one year ago
  16. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    No, what is cos in general?

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

    Do you still need help with this?

    • one year ago
  18. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    yess

    • one year ago
  19. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    cos is x sin is y

    • one year ago
  20. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

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

    • one year ago
  21. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1352671946433:dw|

    • one year ago
  22. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    ok

    • one year ago
  23. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    i understood that

    • one year ago
  24. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    OK, good.

    • one year ago
  25. zordoloom
    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

    • one year ago
  26. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

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

    • one year ago
  27. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    how would i get 2pi/pi=4pi

    • one year ago
  28. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    It doesnt equal 4pi. That would equal 2

    • one year ago
  29. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

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

    • one year ago
  30. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    No, you get 1.

    • one year ago
  31. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    and where do i find 1 on the unit circle

    • one year ago
  32. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1352672476549:dw|

    • one year ago
  33. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    i know its 45degree but idk how?

    • one year ago
  34. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    gimme a sec

    • one year ago
  35. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

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

    • one year ago
  36. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

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

    • one year ago
  37. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    no how he got this

    • one year ago
  38. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    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

    • one year ago
  39. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    cos equals one at 0 and 2pi

    • one year ago
  40. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    then somehow he got 4/p

    • one year ago
  41. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    dont write anything, just read what i write

    • one year ago
  42. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    okkkk

    • one year ago
  43. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1352672770099:dw|

    • one year ago
  44. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    sin=1 at pi/2

    • one year ago
  45. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    Shhh..dont write.

    • one year ago
  46. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1352672843682:dw|

    • one year ago
  47. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1352672885447:dw|

    • one year ago
  48. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1352672912951:dw|

    • one year ago
  49. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    ohhhhh

    • one year ago
  50. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    ok i get it

    • one year ago
  51. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    Ok, r u sure?

    • one year ago
  52. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

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

    • one year ago
  53. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    yes i ddint multiply them

    • one year ago
  54. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

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

    • one year ago
  55. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    um ya an easy 1 please

    • one year ago
  56. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    OK, gimme a sec

    • one year ago
  57. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

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

    • one year ago
  58. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    pi

    • one year ago
  59. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    No.

    • one year ago
  60. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    3pi/4

    • one year ago
  61. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    Yes!

    • one year ago
  62. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    question is cot always on the 3rd quadrant?

    • one year ago
  63. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

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

    • one year ago
  64. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    but thats for cos

    • one year ago
  65. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    not cot

    • one year ago
  66. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    cos=1st cot=3rd

    • one year ago
  67. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    No, all quadrants apply for any trig identity.

    • one year ago
  68. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    oh i know but for those mostly

    • one year ago
  69. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    The answer is still no.

    • one year ago
  70. babydoll332
    Best Response
    You've already chosen the best response.
    Medals 0

    ok thanks :)

    • one year ago
  71. Brittni0605
    Best Response
    You've already chosen the best response.
    Medals 1

    Np.

    • 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.