If the minimum value of for can be expressed as , where is a positive integer, find .
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Applying A.M > G.M inequality
2 0 0 0 x 1 0 0 0 + x 9 0 0 + x 9 0 + x 6 + x 1 + . . . . . . + x 1 > 1
hence the minimum value comes out to be 2000
so, n = 2 0