Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

babbyfromhell93

  • 2 years ago

cos^-1(-sqrt 2/2)

  • This Question is Open
  1. jdoe0001
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    check your Unit Circle if you don't have one -> http://i.stack.imgur.com/r8uHr.gif

  2. thecollinjc1
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    cos^-1 (sqrt2/2) = inverse cos (sqrt2/2) think of an angle which has a cosine equal to (sqrt2/2) cos X = (sqrt2/2) X = 45 degrees, also pi/4 surely, 45 degrees is between -90 and 180 degrees hope that helped.

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

    45

  4. 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