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If the function f(x)=[3.5 + b sin x] (wh...

If the function `f(x)=[3.5 + b sin x]` (where[.] denotes the greatest integer function) is an even function then 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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