x2 |
a2 |
y2 |
3 |
10 |
10 |
x2 |
12 |
y2 |
3 |
|
6m |
m2+4 |
3 |
m2+4 |
y-y1 |
-y2-y1 |
x-x1 |
x2-x1 |
y1(x2-x1) |
y2-y1 |
y1x2-y2x1 |
y1+y2 |
2my1y2+3(y1+y2) |
y2+y1 |
| ||||
|
-24m |
-6m |
1 |
2 |
1 |
2 |
(y1+y2)2-4y1y2 |
1 |
2 |
|
3 |
|
3• |
|
3 |
|
2 |
3 |
|
3 |
-
|
1 |
m2+4 |
1 |
4 |
3 |
-3t2+t |
3 |
-3(t-
|
1 |
6 |
1 |
4 |
(x1-x2)2+(y1-y2)2 |
(m2+1)[(y1+y2)2-4y1y2] |
(m2+1)[
|
3 |
m2+1 |
m2+4 |
|4-3| | ||
|
1 | ||
|
4
| ||
2 |
1 | ||
|
m2+1 |
m2+4 |
3 |
|
3 |
-3(
|
1 |
m2+4 |
1 |
4 |
3 |
-3t2+t |
3 |
-3(t-
|
1 |
6 |
1 |
4 |
x2 |
a2 |
y2 |
b2 |
| ||
2 |
3 |
1 |
2 |
3 |
1 |
2 |
AP |
PB |
DM |
DP |
NP |
DM |
x2 |
a2 |
y2 |
b2 |
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