Question

coslº.cos2º.cos3º ............cos 179º =​

Answer 1

Answer:

0

Step-by-step explanation:

Cos 1 × cos 2 × cos 3 × ......× cos 179

= cos 1 × cos 2 × cos 3 × .....× cos 90 × ..... × cos 179

= cos 1 × cos 2 × cos 3 × .....× 0 × ..... × cos 179

= 0 × cos 1 × cos 2 × cos 3 × ....... × cos 179

= 0

Answer 2

Step-by-step explanation:

0 is the answer bcoz cos(90°)=0

hope it helps...