imo class 12 inverse trigonometric functions

The value of cot(cos⁻¹(7/25)) is:

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The value of cot(cos⁻¹(7/25)) is:

  • A. 24/7
  • B. 7/24
  • C. 25/24
  • D. 24/25

Answer: B) 7/24

Explanation: Let θ = cos⁻¹(7/25). cos θ = 7/25. sin θ = √(1−49/625) = 24/25. cot θ = cos θ/sin θ = 7/24.

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