(sh)W(xu)ӢZW(xu)
(sh)W(xu)ӢZѻش(x)}δش(x)}}ĿRԇR
04Ϻ(sh)f(x)=a[0,+ޣϞ(sh),t(sh)abȡֵ
a>0b0
ĿД(sh)W(xu) Դ }ͣ
04ں(sh)УabcɵȱȔ(sh)t____________ֵСԓֵ__________
04ȫO(sh)(sh)tʹf(x)1׃xȡֵ
A B.
C. D.
04ϺO(sh)溯(sh)f(x)Ķx[-5,5].(dng)x[0,5]r,f(x)ĈD҈D,tʽf(x)<0Ľ .
04ġ(sh)f(x)=x2+bx+cĈDcڵt(sh)f /(x)ĈD
ٶ - (x)б - ԇ}б
ʡ(lin)W(wng)`ͲϢeƽ_ | W(wng)кϢe^(q) | p_e^(q) | vʷ̓oxкϢe^(q) | ֙(qun)e^(q)