cot𝝅/𝟐𝟎 cot πŸ‘π…/𝟐𝟎 cotπŸ“π…/𝟐𝟎cot πŸ•π…/𝟐𝟎 cot  πŸ—π…/𝟐𝟎 = ?

  • 1

    −𝟏

  • 2

    𝟏

  • 3

    𝟏/𝟐

  • 4

    𝟎

Answer:- 2

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