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If A(n) represent the area bounded by the curve y=n " lnx "("where "n in N" and " n gt1) and x-axis from x=1 to x=e, then value of A(n)+nA(n-1) is equal to |
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Answer» `n^(2)` `thereforeA(n)+NA(n-1)=n+n(n-1)=n^(2)` |
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