Ask Question
27 October, 18:05

1-cos^2 (12) - cos^2 (78) simplified with radicals if needed

+5
Answers (1)
  1. 27 October, 18:32
    0
    Hints:

    Check with a calculator to see what you get.

    Then try to simplify the above expression using the following identities.

    1-cos^2 (x) = sin^2 (x)

    sin (x) = cos (90-x)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “1-cos^2 (12) - cos^2 (78) simplified with radicals if needed ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers