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What is the value of cos46^(@)cos47^(@)c...

What is the value of `cos46^(@)cos47^(@)cos48^(@)cos49^(@)cos50^(@)...cos135^(@)`?

A

`-1`

B

0

C

1

D

Greater than 1

Text Solution

Verified by Experts

The correct Answer is:
B
`cos46^(@)cos47^(@)cos48^(@)cos49^(@). . . . cos135^(@)`
We know , `cos90^(@)=0`
`therefore` Given expression has `cos90^(@)` and so it 's value is 0.
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