Question

What is the solution of cos 1 degree cos 2 cos 3 degree......Cos 180 degree?

Answer 1

cos1°cos2°cos3°............cos180°
cos1°cos2°cos3°......cos90°....cos180°
since cos90°= 0
hence when we multiply any no. with 0 we get 0
since answer of this que. will be 0
hope this will help u