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If [sinx]+[sqrt(2)cosx]=-3,x I [0,2pi] (...

If `[sinx]+[sqrt(2)cosx]=-3,x I [0,2pi]` ([.] denotes the greatest integer function), then x belongs to

A

`(pi,(5pi)/4)`

B

`[pi,(5pi)/4]`

C

`((5pi)/4, 2pi)`

D

`[(5pi),4, 2pi]`

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A
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