Question

Cos 10 cos 2 cos 3 ________ cos 180

Answer 1

Answer:

$\huge{\fbox{\fbox{\bigstar{\mathfrak{\red{Answer}}}}}}$

Value of cos 90 is 0

then in this series .

cos 1 cos 2 cos 3 .......cos 180

cos 1 cos 2 cos 3 × cos 90 ......cos 180

cos 1 cos 2 cos 3 ×0 .......cos 180

=0

Answer 2

$\huge\star\mathfrak\blue{{Answer:-}}$

Value of equation above is 0. because in this cos 90 is also being multiplied. since value of cos 90 is 0 so whole equation becomes 0.

=cos1.cos2.....cos90...cos 180

= cos 1. cos 2.... (0)...cos 180

= 0 answer