OA 2=
1 2 + 1 2 =
2 ,OA 3=
(
2 ) 2 + 1 2 =
3 ,…,OA 8=
(
7 ) 2 + 1 2 =2
2 .
OA 1OA 2OA 3OA 4OA 5OA 6OA 7OA 8
1
2
3 2
5
6
7 2
2 它们的乘积为:
2 ×
3 ×2×
5 ×
6 ×
7 × 2
2 =24
70 .
OA 2=
1 2 + 1 2 =
2 ,OA 3=
(
2 ) 2 + 1 2 =
3 ,…,OA 8=
(
7 ) 2 + 1 2 =2
2 .
OA 1OA 2OA 3OA 4OA 5OA 6OA 7OA 8
1
2
3 2
5
6
7 2
2 它们的乘积为:
2 ×
3 ×2×
5 ×
6 ×
7 × 2
2 =24
70 .