Q.
Reciprocal value of expression ∫0n(Fractional part of x) dx∫0n(Integral part of x) dx=
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a
n(n−1)2
b
2n(n−1)
c
n−1
d
1n−1
answer is C.
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Detailed Solution
∫0n{n} dx∫0n[x] dx=n2n(n−1)2=1n−1 So reciprocal =n−1
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