Period of f(x)=nx+n−[nx+n], (nϵN where [] denotes the greatest integer function is
A
1
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B
1n
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C
n
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D
none of these
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Solution
The correct option is B1n f(x)=nx+n−[nx+n] f(x)={nx+n}={n(x+1)} where {⋅} is fractional function which has period value of 1 Therefore, period will be 1n Hence, option 'B' is correct.