1.

(5sin^(2)30^(@)+cos^(2)45^(@)-4tan^(2)30^(@))/(2sin30^(@).cos30^(@)+tan45^(@))=?

Answer»

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

ANSWER :A


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