2.5 简单的幂函数（学案二）-2020年高中同步教与学数学（北师大版必修1）

书书书 !"# ! $ !! % !" ! !"#$%& ! # '( " !! !"#"$% !! )*+, ! $%& !" $ !% ! ! !" & " #$%&'$% # (" ! !"" # # ! !" ! $ % # ! !"&% ) ! !" # &#" *+,'$% # -&./+01'$% #23 # +4./5678,9'$%:;%<4=>?=@ AB#CD$% # ! !" ! E# ! ,FGH% # IJ2KL'$% #MNOPQJ2R ! S5 # )*+- ! .%&/0%&#1234/56 %# -&T$%#UVWXYZ[\ # ]$%#UVWX ! ^[\ # _`a$%T]b#$%#23cdefgWXYZ [\ # ("$% $ ! " " ! ! %&" " %$" %&槡"#hijk$!$""! $ ! " "# lm$%n+,]$% # -&o$%#23c& ! $% # % $# .+WXYZ[\ # p@$%q+,T$%r+,]$% # ## st$%#T]b56pUVus2 % v56pMNOus 2 # wG[KxyzO{&|}#$%~����! # (" # st$ % $ ! " " ! '$"槡 # "$ # "$" # #T]b # CK7 # �� $ ! $" " ! $ ! " " � $ ! $" " !$ $ ! " " �+8� # l"�[$% $ ! " " de~�K���5a & -$%#��� " fgjk '$" # $ ( # "$ # "$" #% ( ' # & $# ' " ' # � " % ( # .WXYZ[\ # X, # "$" # !"$" # "$ # "$" # !" # $ ! " " ! '$"槡 # " # �i.jk $ ! $" " !$ $ ! " "# _ $ ! " " &T$% # )*+7 ! !"$%&#12/89 I����'$% ! !" # ! !" # # ! !" " # ! !" % # ( ! !" $% #U V # ��UV#!��� # �J���x$%#b� # �wG�� �xb��NM��� #  ¡,¢£¤¥%#'#¦§¨{# �� # ��u© ª'$%UV «)b� # 5AB'$%b� "� & ! ¬a#'$%­ ! ( # & ) " *a23 # ��UV*®4Z ! % # % " # " "� !( ( # ¯'$%#UV4YZ # ��­°± ) ( # & ) " u& ²$% # # "� !) ( # ¯'$%UV­°± ! ( # & ) " u,³$% # ­´ K�µ¶ # · " p¸¹º»XYZ¼ # UV­ ! ^¸½¾µ¿ÀÁ ! ^ # · " º»X & ) ¼ # UV­ " ^u½¾µ¿ÀÁ " ^ # $ · ! &T%¼ # '$%&T$% # · ! &]%¼ # '$%& ]$% # !! &'()*+ !! :; # ! $%&#<= # > # $ ! �Â$%E # +,'$%#& ! !! " *+ ! !" ( ,+ ! ! % " -+ ! !" " .+ ! !" ?@ ! !"#$%&'()*+, # AB ! !" ! !" ! ! ! &;% " #$%\&'$% # �E¬Ã Ä#$%Pa ! !" " +`au©!O # _ÅÆÇ -# CDEF ! -./$% ! !%" ! % % ( " 0 %!% # 1./$% ! ! % " ! % % ( " 0 %!% $ 23#$% # 45- % 1./$%6273 #$% # !! :; ' ! .0%&1234#GH # > ' $ ! "UE# ! ( " ,T$%UV#KÈ # # ( $ ,]$ %UV#KÈ # ÉÊËUV # ?@ ! 89: % ;$%&<=>?@AB< # AB ! -&T$%#UVWXYZ[\ # ]$%#UVW X ! ^[\ # _�¡5Ì./#U!ÍÎ"U¬Ï & )*IJ ! ! % " $%&:;C3$%&DECF $ GHIJ $%&KLC # ! # " M & ! " $ ! " NM &' ! $" $ $ ! " OJPMQR # M & ! " $ ! " N M &' ! $" $ ! " OJ ! SQR # M & ! " $ ! " NM &' ! " $ $ ! " OJ " SQR # ! " " BQR<=T $ UVWXYB<=NPZ[&\]CN QRC # ! ' " :$%^_`PMaH'( $ b $ ! ( " c` $ 6 $ ! ( " !(# !!