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Dat Do edited beginproblem_a_You_a.tex
about 10 years ago
Commit id: fad36a0f64498bc1f1258259ef33abe2dd81ec28
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diff --git a/beginproblem_a_You_a.tex b/beginproblem_a_You_a.tex
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\textbf{Solution 1: }
\smallskip
\noindent
{(a)} (a) Since we are receiving one extra coupon for each consecutive day, the total coupons received for $k$ days can be represented as $\sum\limits_{i=1}^k i$ = $\frac{n(n+1)}{2}$