Question

The value of cot 5$^\circ$ cot 10$^\circ$_______cot 85$^\circ$ is

• A. $\frac{1}{\sqrt{2}}$
• B. 1
• C. $\frac{1}{2}$
• D. 0

Answer 1

Answer: (B)

1

Answer 2

Answer (b) 1