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Let f:N rarr R be such that f(1)=1 and f...

Let `f:N rarr R` be such that `f(1)=1 and f(1)+2f(2)+3f(3)+…+nf(n)=n(n+1)f(n),` for `n ge 2, ` then `(2010f(2010))` is ……….. .

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