(sh)W(xu)ӢZW(xu)
(sh)W(xu)ӢZѻش(x)}δش(x)}}ĿRԇR
04ϺO(sh)溯(sh)f(x)Ķx?yn)[-5,5].(dng)x[0,5]r,f(x)ĈD҈D,tʽf(x)<0Ľ .
2,0ȣ2,5
ٶ - (x)б - ԇ}б
ʡ(lin)W(wng)`ͲϢe(bo)ƽ_ | W(wng)кϢe(bo)^(q) | p_e(bo)^(q) | vʷ̓oxкϢe(bo)^(q) | ֙(qun)e(bo)^(q)