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If y^r=(n !^(n+r-1)C(r-1))/(r^n),w h e r...

If `y^r=(n !^(n+r-1)C_(r-1))/(r^n),w h e r en=k r(k` is contstant), then `("lim")_(rvecoo)y` is equal to (a)`(k-1)(log)_e(1+k)-k` (b)`(k+1)(log)_e(1-k)+k` (c)`(k+1)(log)_e(1-k)-k` (d)`(k-1)(log)_e(1-k)+k`

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