Ask Question
7 July, 04:29

If sin theta 3/5 and theta terminates in the first quadrant find the exact value of cos 2 theta

+2
Answers (1)
  1. 7 July, 04:58
    0
    i'm gonna use x instead of theta ... since x is in the first quadrant, cosx=4/5 ... (use this is a 3-4-5 triangle) so using the double angle formula: cos2x = cos^2 (x) - sin^2 (x).
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “If sin theta 3/5 and theta terminates in the first quadrant find the exact value of cos 2 theta ...” 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