1 | ÷ | 3 | × | ( | 3 | ÷ | 5 | × | ( | 5 | ÷ | 7 | × | ( | 7 | ÷ | 9 | × | ( | 1 | + | a | ) | + | a | ) | + | a | ) | + | a | ) | + | a | = | 1 | ÷ | 3 | × | ( | 3 | ÷ | 5 | × | ( | 5 | ÷ | 7 | × | ( | 7 | ÷ | 9 | × | ( | 1 | − | a | ) | − | a | ) | − | a | ) | − | a | ) | − | a | − | 100 | ÷ | 9 100 |
方程左边 = | 1 3 | ( | 3 | ÷ | 5 | × | ( | 5 | ÷ | 7 | × | ( | 7 | ÷ | 9 | × | ( | 1 | + | a | ) | + | a | ) | + | a | ) | + | a | ) | + | a |
1 3 | ( | 3 | ÷ | 5 | × | ( | 5 | ÷ | 7 | × | ( | 7 | ÷ | 9 | × | ( | 1 | + | a | ) | + | a | ) | + | a | ) | + | a | ) | + | a | = | 1 | ÷ | 3 | × | ( | 3 | ÷ | 5 | × | ( | 5 | ÷ | 7 | × | ( | 7 | ÷ | 9 | × | ( | 1 | − | a | ) | − | a | ) | − | a | ) | − | a | ) | − | a | − | 100 | ÷ | 9 100 |
方程左边 = | 1 3 | × | 3 | ÷ | 5 | × | ( | 5 | ÷ | 7 | × | ( | 7 | ÷ | 9 | × | ( | 1 | + | a | ) | + | a | ) | + | a | ) | + | 1 3 | a | + | a |
= | 1 5 | ( | 5 | ÷ | 7 | × | ( | 7 | ÷ | 9 | × | ( | 1 | + | a | ) | + | a | ) | + | a | ) | + | 1 3 | a | + | a |
= | 1 5 | ( | 5 | ÷ | 7 | × | ( | 7 | ÷ | 9 | × | ( | 1 | + | a | ) | + | a | ) | + | a | ) | + | 4 3 | a |
= | 1 5 | × | 5 | ÷ | 7 | × | ( | 7 | ÷ | 9 | × | ( | 1 | + | a | ) | + | a | ) | + | 1 5 | a | + | 4 3 | a |
= | 1 7 | ( | 7 | ÷ | 9 | × | ( | 1 | + | a | ) | + | a | ) | + | 1 5 | a | + | 4 3 | a |
= | 1 7 | ( | 7 | ÷ | 9 | × | ( | 1 | + | a | ) | + | a | ) | + | 23 15 | a |
= | 1 7 | × | 7 | ÷ | 9 | × | ( | 1 | + | a | ) | + | 1 7 | a | + | 23 15 | a |
= | 1 9 | ( | 1 | + | a | ) | + | 1 7 | a | + | 23 15 | a |
= | 1 9 | ( | 1 | + | a | ) | + | 176 105 | a |
= | 1 9 | × | 1 | + | 1 9 | a | + | 176 105 | a |
= | 1 9 | + | 1 9 | a | + | 176 105 | a |
= | 1 9 | + | 563 315 | a |
1 9 | + | 563 315 | a | = | 1 | ÷ | 3 | × | ( | 3 | ÷ | 5 | × | ( | 5 | ÷ | 7 | × | ( | 7 | ÷ | 9 | × | ( | 1 | − | a | ) | − | a | ) | − | a | ) | − | a | ) | − | a | − | 100 | ÷ | 9 100 |
方程右边 = | 1 3 | ( | 3 | ÷ | 5 | × | ( | 5 | ÷ | 7 | × | ( | 7 | ÷ | 9 | × | ( | 1 | − | a | ) | − | a | ) | − | a | ) | − | a | ) | − | a | − | 10000 9 |
1 9 | + | 563 315 | a | = | 1 3 | ( | 3 | ÷ | 5 | × | ( | 5 | ÷ | 7 | × | ( | 7 | ÷ | 9 | × | ( | 1 | − | a | ) | − | a | ) | − | a | ) | − | a | ) | − | a | − | 10000 9 |
方程右边 = | 1 3 | × | 3 | ÷ | 5 | × | ( | 5 | ÷ | 7 | × | ( | 7 | ÷ | 9 | × | ( | 1 | − | a | ) | − | a | ) | − | a | ) | − | 1 3 | a | − | a | − | 10000 9 |
= | 1 5 | ( | 5 | ÷ | 7 | × | ( | 7 | ÷ | 9 | × | ( | 1 | − | a | ) | − | a | ) | − | a | ) | − | 1 3 | a | − | a | − | 10000 9 |
= | 1 5 | ( | 5 | ÷ | 7 | × | ( | 7 | ÷ | 9 | × | ( | 1 | − | a | ) | − | a | ) | − | a | ) | − | 4 3 | a | − | 10000 9 |
= | 1 5 | × | 5 | ÷ | 7 | × | ( | 7 | ÷ | 9 | × | ( | 1 | − | a | ) | − | a | ) | − | 1 5 | a | − | 4 3 | a | − | 10000 9 |
= | 1 7 | ( | 7 | ÷ | 9 | × | ( | 1 | − | a | ) | − | a | ) | − | 1 5 | a | − | 4 3 | a | − | 10000 9 |
= | 1 7 | ( | 7 | ÷ | 9 | × | ( | 1 | − | a | ) | − | a | ) | − | 23 15 | a | − | 10000 9 |
= | 1 7 | × | 7 | ÷ | 9 | × | ( | 1 | − | a | ) | − | 1 7 | a | − | 23 15 | a | − | 10000 9 |
= | 1 9 | ( | 1 | − | a | ) | − | 1 7 | a | − | 23 15 | a | − | 10000 9 |