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Let A be nxxn matrix given by A=[(a(11...

Let `A` be `nxxn` matrix given by
`A=[(a_(11),a_(12),a_(13)……a_(1n)),(a_(21),a_(22),a_(23)…a_(2n)),(vdots, vdots, vdots),(a_(n1),a_(n2),a_(n3).a_("nn"))]`
Such that each horizontal row is arithmetic progression and each vertical column is a geometrical progression. It is known that each column in geometric progression have the same common ratio. Given that `a_(24)=1,a_(42)=1/8` and `a_(43)=3/16` .Let Di be the common difference of `i^(th)` row
The value of `lim_(nto oo)sum_(i=1)^(n)D_(i)` is equal to

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