( | 50 | × | 707 | ÷ | r | × | ( | 600 | − | r | ) | − | 1 | ) | ( | 50 | × | 707 | ÷ | r | × | ( | 600 | − | r | ) | − | 1 | ) | = | 1 | ÷ | r |
方程两边同时乘以: | r |
( | 50 | × | 707 | ÷ | r | × | ( | 600 | − | r | ) | − | 1 | ) | ( | 50 | × | 707 | ÷ | r | × | ( | 600 | − | r | ) | − | 1 | ) | r | = | 1 |
50 | × | 707 | ÷ | r | × | ( | 600 | − | r | ) | ( | 50 | × | 707 | ÷ | r | × | ( | 600 | − | r | ) | − | 1 | ) | r | − | 1 | ( | 50 | × | 707 | ÷ | r | × | ( | 600 | − | r | ) | − | 1 | ) | r | = | 1 |
35350 | ÷ | r | × | ( | 600 | − | r | ) | ( | 50 | × | 707 | ÷ | r | × | ( | 600 | − | r | ) | − | 1 | ) | r | − | 1 | ( | 50 | × | 707 | ÷ | r | × | ( | 600 | − | r | ) | − | 1 | ) | r | = | 1 |
35350 | ÷ | 1 | × | 600 | ( | 50 | × | 707 | ÷ | r | × | ( | 600 | − | r | ) | − | 1 | ) | × | 1 | − | 35350 | ÷ | 1 | × | r | ( | 50 | × | 707 | ÷ | r | × | ( | 600 | − | r | ) | − | 1 | ) | × | 1 | − | 1 | ( | 50 | × | 707 | ÷ | r | × | ( | 600 | − | r | ) | − | 1 | ) | = | 1 |
21210000 | ( | 50 | × | 707 | ÷ | r | × | ( | 600 | − | r | ) | − | 1 | ) | − | 35350 | r | ( | 50 | × | 707 | ÷ | r | × | ( | 600 | − | r | ) | − | 1 | ) | − | 1 | ( | 50 | × | 707 | ÷ | r | × | ( | 600 | − | r | ) | − | 1 | ) | r | = | 1 |
21210000 | × | 50 | × | 707 | ÷ | r | × | ( | 600 | − | r | ) | − | 21210000 | × | 1 | − | 35350 | r | ( | 50 | × | 707 | ÷ | r | × | ( | 600 | − | r | ) | − | 1 | ) | − | 1 | ( | 50 | × | 707 | ÷ | r | × | ( | 600 | − | r | ) | − | 1 | ) | = | 1 |