Ask Question
11 August, 14:45

Find the missing piece to make this equal on both sides

sin pi/4 sin pi/6 = 1/2 (cos pi/12 - _?__ 5pi/12)

+3
Answers (1)
  1. 11 August, 15:01
    0
    The rule to solve this problem:

    sin x sin y = 0.5 [ cos (x-y) - cos (x+y) ]

    ∴ If x = π/4 and y = π/6

    x-y = π/12 and x+y = 5π/12

    ∴ sin (π/4) sin (π/6) = 0.5 [ cos (π/12) - cos (5π/12) ]
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Find the missing piece to make this equal on both sides sin pi/4 sin pi/6 = 1/2 (cos pi/12 - _?__ 5pi/12) ...” 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