Question

cos 60° + cos 60° + cos 60° + cos 60° +.........=
​

Answer 1

Answer:

2

Step-by-step explanation:

cos 60° = 1/2

So that, cos60° + cos60° + cos60° + cos60°

= 1/2 + 1/2 + 1/2 + 1/2

= 1+1+1+1 ÷ 2

=4 ÷ 2

=2

Answer 2

Answer:

cos 60° + cos 60° + cos 60° + cos 60° = 2