Question

The value of $\cos 1^{\circ }\cos 2^{\circ }\cos 3^{\circ }\cos 179^{\circ }$ is equal to

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

Answer 1

Answer: (B)

Correct answer is (b) 0