The value of cos(tan⁻¹(5) + cot⁻¹(5)) is:
The value of cos(tan⁻¹(5) + cot⁻¹(5)) is:
- A. 1
- B. 0
- C. 5
- D. -1
Answer: B) 0
Explanation: Using the property tan⁻¹(x) + cot⁻¹(x) = π/2. So, cos(π/2) = 0.
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