यदि 𝒄𝒐𝒔𝟒𝜽+𝟏/𝒄𝒐𝒔𝟒𝜽 = 194,  तो 𝒄𝒐𝒔𝟑𝜽+𝟏/𝒄𝒐𝒔𝟑𝜽 =?

  • 1

    84

  • 2

    62

  • 3

    61

  • 4

    52

Answer:- 4

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