第二章 平面解析几何初步（练案二）-2020年高中同步教与学数学（人教B版必修2）

书书书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槡 * +!%,#.% *! _`#7% " # ! " #* $" # # " " $ $ a8&9:+ !!!! ! "! $bc "#$ &$de%&'()*B " # " " 1 $! # # $ " #! $! $ # #* " #$ $" , "# fgh $/ &iB !!!! ! " !"# ! ! 5#A34-.*/0 '! K7% " # #* " * $" # # * " ' $ -9: " 26'("#&%&'( B !!!! ! $! /0% " # #! " * $" # # * "槡1$"6% "#FG%"H%("%. % (# % " jF % (" % &? ! " !"# # ! B#-.*/0 /! k% " 6 % "# " % # 6 0 "# " "# &g%B ( # * " #! $" , % "# % -. # !! $ 槡 槡 槡&,$ (,' * ),* $ +,* !- 1! % ( # * " #" $ C% ( L. * # ' " ! $ =M% (- &9:B # !! $ 槡 槡&,*- (,'- ),* $ +,' $ " 12# " ! 5#A34-.*12/0 2! /0 " # $ " *,#! $" # # ,%! " ,#' $" l % "# % >mn?o " p! , &?B # !! $ &,# 1 * (,# !