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Question

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 B 1n
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.

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