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If the function f(x)=[3.5+bsin x] (where...

If the function `f(x)=[3.5+bsin x]` (where [.] denotes the greatest integer function) is an even function, the complete set of values of b is

A

`(-0.5,0.5)`

B

`[-0.5,0.5]`

C

`(0,1)`

D

`[-1,1]`

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The correct Answer is:
A
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