Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

kenneyfamily

  • 3 years ago

Which expression is NOT equivalent to cos 2A? a. 2cos^2 A - 1 b. cos^2 A - sin^2 A c. 2sinAcosA d. 1 - 2sin^2 A

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

    C . C is the Sin2A rule.

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

    thanks!

  3. 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