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Which term of AP:51,47,43 is a cube of itself?
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AP 51,47 43 putting a=51,d÷(47-51)=-4and sn=330 330=n/2(251+(n-1)(-4) 330=n(51-2n+2) 330=53-2n+2) -2N+,2) -2N 2N+,53-330=027974469=9636489765
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