cos2 𝝅/πŸπŸ” + cos2 πŸ‘π…/πŸπŸ” + cos2 πŸ“π…/πŸπŸ” + cos2 πŸ•π…/πŸπŸ” =?

  • 1

    0

  • 2

    1

  • 3

    2

  • 4

    3

Answer:- 3

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