Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing


  • 3 years ago

please help explain this trig problem. Solve the equation on the interval [0.2π):12 cos^2x-9=0

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

    1. Add 9 to both sides 2. Divide both sides by 12 3. Take the square root of both sides (remember a number has 2 square roots.) 4. Tell the 4 angles between 0 and 2 pi that have the given cosines.

  2. 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