Question

阿羅哈

想要請問一下這題數學～🙏
答案是2x-y+6=0

2
-
=
設二拋物線 y = f(x)=x^ +6.x +10,y=g(x)=x-2x+10
求其公切線方程式
o

♡
f(x)= x + 6% +10=(1+3)
g(x) = x + 2 % +10=(1-1) 49
og f'(x)= x + 6 = 2(X+3)
g'(X) = 2 X |
令 60 (S, Sitb5+10)
% (8,
(t, t ² 29 +10)
Ta tastri
(5-4) (9+57) = fortsats)-h
t
Y-(+30).(+1(84
(35+b)x=y=357 35+5=85-10
(x+1)x=ye st²t-tratto
(+5+6)x-Y = 5*56
(24-1) X-Y = txt-to-
se trt 8 23+6=2to
124 +7=2t
s
AL
6-77
"S=
L
4 + 8 ++49
1 ttt
4
4t
"4+18t+49 = 46 46
r! 49 = 32t, t = 48/3, 3= 63
)

Answer 1

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我就是我

你g(x)微錯了

阿羅哈

原來如此～我等等訂正！先謝謝你🙏👍

阿羅哈

謝謝你！👍我會算了👍