Find the value: (cos 135^(@) -cos 120^(...

Find the value:
`(cos 135^(@) -cos 120^(@))/(cos 135^(@) +cos 120^(@))`

A

`(sqrt2-1)/(sqrt2+1)`

B

`(sqrt2+2)/(sqrt2+1)`

C

`(sqrt2+1)/(sqrt2-1)`

D

`(sqrt2-2)/(sqrt2-1)`

लिखित उत्तर

Verified by Experts

The correct Answer is:

A

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