Mathematics
Senior High
恒等式で解いたんですけど、
交点はK=9 ですよね?
不安になってしまって
分かる方、教えてください🙏
1150 3x+27-1=0
27=-3x+1
47=2+5
X = - 17/1²/²
(11/17) (-2.3)を通る直線
-X+48-5=0
1-5-8
48-6742
4-4f==x7
4x==3
の交点と、(2,3)を通る直線の座標
27.3.(-2) + 1
2y = 16
3 0 12 ( 77 )
(31
①② の交点を通る直線は
k (31²+27-1) + (−X+47-5) = 0
(-2.3)を通るので
k (3-2+2.3-1)+(-(-2)+4.3-5)=0
--k+ 9 = 0
- k=-9
k= 9
③より
28119(32+27-1) + (−2+47 5 ) = 0
27x+187-9-X + 4 7 -5 - 0
26x + 227 14 = 0
13x+1×2-7=0
_-_6+6
2+12-1
14-1-9
2X-2112
43x727-12
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