Question

lizz

第三題🙏🙏

1x) = ax + bxt catd.
f'(x)=39
froj= d 1 d=3
t"(x) = 1
(131.279 +9 h+36=-6
molt"!!)=4
fli)= at bec=2
+ $
6) 使函数f(x) = -n ' + aa + bx +2 為遞增的範圍為-3<x<1,
求數對(a,b) =
10:27 +99-31 12
natab +36=-6
3a +3 6+3 6 = 6
249 +6 b = -12
04 a + b = -2
u
-
3
=