1.1 集合的含义与表示（学案二）-2020年高中同步教与学数学（北师大版必修1）

书书书 !"# ! $ !! % !" ! !"#$%&'( ! " )* " !! !"#"$% !! +,-. ! !"/01#2345 !"# ! $%# ! &'# " ()*$%#(+ " ,*-./0 12 " 3*45675892 # 467( ! !"#$%&'()*+, ! -./0123 -456789:;#$ ! <-./01=>?#$@A(B C # +,-8 ! 01&!"#9: :; $ <=> % ?@*ABCDABEF " GHI $ " % " H I $ # %# 467( ! " ! # DE $ # %$ " % 7FG&'?#$HI(AJ ( ! K9"LFG#$?#$HI(AJ & " " # $ # % ? $ " % M>N $ 7K7#$ % %(&' # OP# $%&'(QRS ! 0T5UV $ ? % ! W $ # % ? $ " % XYZ [\%]@-Z^_@-Z;` # +,-; ! !"<=>?@A!#BC'( DEFG # JB $ KLM:; " G # N:; " O"PABMQ = # R=SDTUV:; " WPXMYNZ[6\] # $ ! % R=^_`abcdefg6hijk # lZmn &$ ' %! " &$ ' %" & # 6o6=>p*R= ' ql " Drs & " % # 6o6=> 3*R= ' $ " % R=tab=><=>?@6EFuvw ( xy ) 6\ ] " zde{|}~6fg�w���H6}~ # lJ�� &$ ' %& u62n�6=> % " J��� ' %'& " u62n�6=> ( " �J % < ( 6��:;n�6=>W��� $ # +,-H ! !"#IJ'(KL $$$ MNL % OPL !# ��� �=>K6:;dd��0� " �t���� " ��6}� Z����� " P6�2*W|�!=>K��6:;�:; 6N� # ���7]�}�MQ=CM( O¡6&Q= # ]� ��}�M( O¡6&Q=¢ " £¤�:;@6O¡}�¥ ¦§¨©]ª«� # "# ¬­� ¬­�M|®Y¯7°±s # $ ! % d²±s� & & # ) & * $ & %*" ³l # ´µDrs & % ( 6h� ¶�6=>W|}�� & & # + & ! % ( *' $ " % �·±s # �:;�M6�¸#¹�t���� # l & º � *"& »¼± *' $ ( % z]¬­�¢ " ½¾j¿2 # ! �¥¦=>K:;6À � ' " Á�Â=>K:;6#¹ ' # D©0ÃÄÅÁ�6ÆÇ ' $ Èɬ­¢ " ½ÊË!z] ( Ì )( C )' % ÍM¬­6�ÎÏH� t��� ' & ]B¬­6ÐÑÒÓ�� ! !Ô " ]¬­�}�=>¢ " H¾j=>K:;6�#Õ(#6Ö ) ! ×F " l #% & ! & $ % !槡 $!*}�ؽ$% !槡 $!6!6ÙÚ ÛÜ ' %% & $ & $ % !槡 $!*}��Ý>$% !槡 $!6$6ÙÚÛÜ' &% &$ ! " $ % & $ % !槡 $!*}�6*´µ$% !槡 $!6!"$6M'� ض�6=> " Þß�»N=>6(+#¹à¸ " áJB=>6â ã " G:;6�#D¸ " Í|Pä}�»ND¸6=> " !! &'()*+ !! QR " ! !"01#45ST & U " ' ! å ' " ( " & �=> ) K6»N:; " æÌPä3* ' #%* 6»çè " � ' #%* d"D* $ !! % )* é¼»¼± !!!! +* �¼»¼± ,* ê¼»¼± -* r뻼± VW ! a#$&'(bcST ! ' ! ( ! & bKde ! fg)h i #%* ()jbKde ! kl -" XY ! - -Z ! =>mC(An7op#$&'(bcS+, " & U , ' ! ì #% & ! " + " " + " $+$" *" Óh� + 6ÙÚÛÜ " VW ! a#$&'(bcST ! ! ! + " ! + " $+$" 7bKdq( " XY ! Jg8 # + " ( ! " + " $+$" ( ! " + " ( + " $+$" ) * + " , + ( .! " + ( '" & " / h� + 6ÙÚÛÜ* & + # + & + ( '" " '! " ! * " VQ[\ ! =>mC(An7op#$&'(bcS+ , " QR , ! 01&!"#9: & U - ' ! => #% & ! # +