4 cos 36^(@) + cot 7 (1^(@))/(2)=...

`4 cos 36^(@) + cot 7 (1^(@))/(2)=`

A

`1 + sqrt(2) + sqrt(3) + sqrt(4) + sqrt(5) + sqrt(6)`

B

`1 + sqrt(2) - sqrt(3) + sqrt(4) - sqrt(5) + sqrt(6)`

C

`1 - sqrt(2) + sqrt(3) - sqrt(4) + sqrt(5) - sqrt(6)`

D

`1 + sqrt(2) - sqrt(3) + sqrt(4) + sqrt(5)-sqrt(6)`

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The correct Answer is:

A

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