x2 |
a2 |
y2 |
b2 |
3 |
| ||
3 |
|
3 |
2 |
x2 |
3 |
y2 |
2 |
a2 |
c |
y0 |
2 |
y1 |
x1-1 |
y0y1 |
2(x1-1) |
y1 |
x1 |
y1-y0 |
x1-3 |
| ||
|
y | 21 |
| ||
3 |
2 |
3 |
2 |
3 |
2 |
3 |
y1 |
x1 |
2x1 |
3y1 |
2x1 |
3y1 |
2x1 |
3y1 |
2 |
y1 |
|
y | 21 |
x | 21 |
y | 21 |
y | 21 |
x | 21 |
y | 21 |
x | 21 |
x | 21 |
3 |
A.
| B.-
| C.
| D.-
|
3 |
A.30° | B.60° | C.120° | D.150° |
3 |
A.30° | B.120° | C.135° | D.150° |
A.-1 | B.3 | C.1 | D.-3 |
A.4x-3y+3=0 | B.4x+3y-3=0 | C.4x-5y+5=0 | D.4x-4y+5=0 |
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