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Q.1 Subtracting 1
Subtract.
17 β 1 =
18 β 1 =
19 β 1 =
20 β 1 =
9 β 1 =
10 β 1 =
11 β 1 =
12 β 1 =
3 β 1 =
15 β 1 =
1 β 1 =
8 β 1 =
16 β 1 =
6 β 1 =
13 β 1 =
14 β 1 =
2 β 1 =
4 β 1 =
5 β 1 =
7 β 1 =
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