2016年全国1卷高考压轴题的分析与解析pdf

??M(0, t)???P?t22p, t????N?t2p, t?????????ON????y=ptx????ON???????C??????Н?px(px?2t2) = 0,??H??????2t2p???????|OH||ON|=2t2pt2p= 2.(2)??(1)Щ?????Н?H??????2t2p,2t??????MH????2t?t2t2p?0=p2t,????MH???1?y=p2tx+t,?2px= 4ty?4t2,????C?????Н?y2?4ty+4t2= 0,????????= 0????H????MH?CЬ???????1???????????????Нй???оMH: 2ty=p?x+t2p?????????о???2 2016ё?м1?(??)????10?(?21).????f(x) = (x?2)ex+a(x?1)2?(1)??f(x)?????(2)?f(x)???????a????????第(1)小题是常规的考查利用导函数研究函数的单调性的问题;第(2)小题与理科第21题第(1)小题相同.?(1)??f(x)????f′(x) = (x?1)(ex+2a),??Нй?????д????e2,0?????a <?e2З?ln(?2a)>1?????f(x)?(?∞,1)???????(1,ln(?2a))???????(ln(?2a),+∞)??????????a=?e2З?ln(?2a) = 1?????f(x)?R???????????e2< a <0З?ln(?2a)<1?????f(x)?(?∞,ln(?2a))???????(ln(?2a),1)???????(1,+∞)??????????a?0З?ex+2a >0?????f(x)?(?∞,1)???????(1,+∞)??????(2)?????21??(1)Щ??