Question

The value of cos 1° cos 2° cos 3°…………cos 179° is

Answer 1

Answer:

Since cos 90° = 0, we have

cos 1° cos 2° cos 3° …cos 90°… cos 179° = 0

Answer 2

Answer:

❀ʀᴇǫᴜɪʀᴇᴅ ᴀɴsᴡᴇʀ:

Cos 10 × cos 20 × cos 30 × ...× cos 1790

⇒cos 10 × cos 20 × cos 30 × ...× cos 900 × ... × cos 1790

⇒cos 10 × cos 20 × cos 30 × ...× 0 × ... × cos 1790

⇒ 0

$\sf\pink{hope \: this \: helps!!!}$