A=(1,1)
|AB|=3
|A'B'|=7
| 7 | ||
k= | ||
| 3 |
| 7 | ||
1) k= | ||
| 3 |
| 7 | ||
PA'→= | *PA→⇔ | |
| 3 |
| 7 | ||
[−1−x,1−y]= | *[1−x,1−y] | |
| 3 |
| 7 | 7 | 7 | 7 | |||||
−1−x= | − | x i 1−y= | − | y | ||||
| 3 | 3 | 3 | 3 |
| 4 | 10 | 4 | 4 | ||||
x= | i | y= | |||||
| 3 | 3 | 3 | 3 |
| 10 | ||
x= | i y=1 | |
| 4 |
| 10 | ||
P=( | ,1) | |
| 4 |
| 7 | ||
[−1−x,8−y]= | *[1−x,4−y] | |
| 3 |
| 7 | 7 | 7 | 7 | |||||
−1−x= | − | x i 8−y=4* | − | y | ||||
| 3 | 3 | 3 | 3 |
| 4 | 10 | 4 | 28 | ||||
x= | i | y= | −8 | ||||
| 3 | 3 | 3 | 3 |
| 10 | 4 | 4 | ||||
x= | i | y= | ⇔y=1 | |||
| 4 | 3 | 3 |
| 10 | ||
P=( | ,1) | |
| 4 |