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The range of the function f(x)=[sinx+cos...

The range of the function `f(x)=[sinx+cosx]` (where `[x]` denotes the greatest integer function) is

A

[-2,1]

B

[-2,-1,0,1]

C

[-1,1]

D

[-2,-1,1]

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The correct Answer is:
B
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