Question

cos1 degree.cos2 degree. cos3 degree...... cos90 degree=0

Answer 1

Answer:hence proved

Step-by-step explanation:

Whatever you get by multiplying cos1° to cos 89° will be nullified by cos90° because it is 0 and anything on multiplying with 0 becomes 0.

Hence Proved

Answer 2

Answer:

Whatever you get by multiplying cos1° to cos 89° will be nullified by cos90° because it is O and anything on multiplying with O becomes 0.

Hence Proved