1. 98
2. 86
3. 93
4. 81
93
1. 81
2. 9
3. 16
4. 25
81
1. 12
2. 16
3. 34
4. 36
36
1. 2×7-1
2. 2×11-1
3. 14
4. 22
2×7-1
1. 420
2. 260
3. 200
4. 300
300
1. 10
2. 8
3. 4
4. 6
8
1. 6 × 7-15
2. 6 × 7-14
3. 7 × 7-15
4. 7 × 7-14
6 × 7-15
1. 0
2. -1
3. -2
4. 2
-2
1. 15/4
2. 4/15
3. 7/4
4. 4/7
15/4
1. DEBC
2. BDEC
3. DBEC
4. BEDC
5. CDBE
DBEC