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Maths-

cos squared space open parentheses 60 to the power of ring operator minus x close parentheses plus cos squared space open parentheses 60 to the power of ring operator plus x close parentheses element of

Maths-General

  1. [negative 1 half comma 1 half]
  2. [1 half comma 1]
  3. [1 half comma 3 over 2]
  4. [3 over 2 comma 2]

    Answer:The correct answer is: [1 half comma 3 over 2]

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