Calculate the value of "(i)" cos 15^(...

Calculate the value of
`"(i)" cos 15^(@)`
`"(ii)" cos 75^(@) `

A

`(i)(sqrt3+1)/(2sqrt2)`
`(ii)(sqrt3-1)/(2sqrt2)`

B

`(i)(sqrt3-1)/(2sqrt2)`
`(ii)(sqrt3+1)/(2sqrt2)`

C

`(i)(sqrt3-1)/(2sqrt2)`
`(ii)(sqrt3-1)/(2sqrt2)`

D

`(i)(sqrt3+1)/(2sqrt2)`
`(ii)(sqrt3+1)/(2sqrt2)`

लिखित उत्तर

Verified by Experts

The correct Answer is:

A

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