The value of cos1° cos2° cos3° ............. cos177° cos178° cos179° is?

A. 0

B. $$\frac{1}{2}$$

C. 1

D. $$\frac{1}{{\sqrt 2 }}$$

Answer: Option A

Solution(By Examveda Team)

cos1° cos2° cos3° ............. cos177° cos178° cos179°
= cos90°
= 0[0 will make whole series 0]
= 0