Page 18 - 高中数学小题狂做·选择性必修第二册·BS
P. 18
ìí=îD!
#!" " !
&! ½Ú"#=$%&'\R¡Ö# "+ "'# " # !" ' #! Xj1"=6ï«"! ' Öðñ! òßtU" ! ! # !
#
#
# " =óô=ðñ' + # "" # ! ! õtUÖ" " ! # " #!" + ! # + Q' + # "" # + ! " @AB,$ C&D#
" "! ""+
(! ½Ú"#=KL
" ! #* # " X&ÚÖ'=½Ú"#! å+# " + , # - +& . " + ! " !!! '# #! §# +# # "+ # ,# # -+& # .! " @AB,$
+
,-.
(
C!D#
!
uvUXå# +# # "+& # . Y6*Q+# " +& . ! ~+"#!
" & # ½Ú"#H! ö÷6*=øùú²6%! ûi="#üÖ½Ú"#! " @AB,$ C*D#
+
+"
" ( #å* # " X&ÚÖ'=½Ú"#! §* # "# # " # ( (Ö+"! ( '# # X&ÚÖ& '=½Ú"#!
(
!
+"!
+
+!* ) " :ýX&ÚÖ' ! ' & =½Ú"#! §"#* # "# - ) " ,- X+"# X&ÚÖ , ' !# - ' & =½Ú"
" * #å* # " ,
#! " @AB,$ C(D#
+
+
" ' #* # " =&ÚÖ' ! §') - * * # " Ö"#% '+ - * * # " Ö"#% '+- * * # " Ö+"#! " @AB,$
+
+
C)D# !
*! þ½Ú"#=âWÿ!$" ! # 01"#;"%=½Ú"#! \þÖ$(! & " ' ! & ! & # ' !(! $&ÚÖ' % 01"
#<"%=½Ú"#! $+\þÖ$(! # "( ' ! # " ' ! # # ' ! # #( ' !(! $&ÚÖ& ' ! " @AB,$ C.D#
" & #½Ú"#=$%\þÖ# "+ , " # - !
'! ¬Ï%îDH! å&6ûEofQj="=îD! \'(,"#Æ/Òë! ålû"ïióôÅ)(
S*! §\'(,½Ú"#Æ/Òë! " @AB,$ C!&D#
!"#$& ! -.%&'5!1623
#
!! / "+ " " # !# # " ! " @AB,$ C! ! $D#
&
" " " "! #
&! / "+ "# !# ' ! " @AB,$ C' ! %D#
&
$ / ! ! " +! !
(! # "+ # uvUX+u,-./" +!=01! " @AB,$ C.D#
!
% / "" / " "! " " &!
+ ! ! ! !(hi½Ú"#! &ÚÖ3&Ú=( 4! " @
&
*! å½Ú"#* # " =2"%³Ö/ " §"#/ ( / & (" / ( / ( (" / & (
AB,$ C'D#
'! å½Ú"#* # " =%"Ö& " " "'# #! §/ < " / ;+ "' ! + # " % å%"Ö& ""! " "'# #! §/ & " "!+
/ ;
+
(
(
/ < # " #!
/ ;
! ! + " ! " @AB,$ C*D#
" & " "! # # " k/ ;" / <+ # "
/ < ""!
!"#$' ! -.%&'5!16'789:
!! ½Ú"#2"%³=¶$
" ! #¬½Ú"#* # " H!
+
# "" - !
$
õ# !) - ! ' + -! / " Q¶·! ×/ " ²Ô¶=" \ÂY½'û # V*%
%
# " #!& -
# "& - !
$
õ# !+ - ! ' ) -! / " Q¶¸! ×/ " ²5¶=" \ÂY½'û # V*! " @AB,$ C) ! !(D#
# " #!" -
%
& " #
'
' &
" & # / "+ " # # !" & " ! å' , - ! § 6ï«"=7¨$ õ') -! / " Q¶¸% õ'+ -! / " Q¶·
! õ"²¶809:=°;"! / " ²5¶! " @AB,$ C!(D#
&! ½Ú"#=<%²=0>ûi"#* - # " - +! å3½Ú"#* # " H?Q2%! [Q3%! * - # " - + Y@X
+
+
½Ú"#! !³jAXB5"#* # " =23%:CUD="! @:E!³!
, & ,