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If f: R rarr R is defined by f(x)= [x/5...

If `f: R rarr R ` is defined by `f(x)= [x/5]` for `x in R`, where [y] denotes the greatest integer not exceding y, then `{f(x):|x| lt 71}=`

A

`{-14, -13, ............,0,........,13,14}`

B

`{-14, -13,.......,0,.......,14,15}`

C

`{-15, -14, ........,0,.........,14, 15}`

D

`{-15, -14,......,0,......13,14}`

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The correct Answer is:
D
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