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All the pairs (x, y) that satisfy the in...

All the pairs `(x, y)` that satisfy the inequality
`2 sqrt(sin^(2) x - 2 sin x + 5). (1)/(4 sin 2 y) le 1` also satisfy the equation :

A

`12/5sqrt(2)`

B

`11/6sqrt(2)`

C

`12/5sqrt(3)`

D

`11/6sqrt(3)`

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