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General
Easy

Question

sin space 12 to the power of ring operator sin space 48 to the power of ring operator sin space 54 to the power of ring operator equals

  1. 1 half
  2. 1 fourth
  3. 1 over 8
  4. 1 over 16

The correct answer is: 1 over 8


    sol. Multiplied and divided by s i n space 72 to the power of 0 and apply
    sin space theta sin space open parentheses 60 to the power of ring operator minus theta close parentheses times sin space open parentheses 60 to the power of ring operator plus theta close parentheses equals 1 fourth sin space 3 theta

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