Page 51 - 高中数学小题狂做·必修第二册·提优版

!!!!! ?@{6 !
(0'!
!
" * # ! $ * # $ $" †:¼3' ( %
¼3- )' 5 0 5 ˆ" % 0 &2 0 )' 5 0 " E¥Õ$%!–
!'' x-8? ! a0# ( $/0“1qç`ò0 %
(
%
!f¨" @A 9W- m0 " " &% 0&2 0 )'"0 " ER=
%
#½¥E" @A:W'
"'2 ! `ç" š.8Rj" / # 2 !"# Qr*$*+" »

()#@ " !*/ "" $/ (/$3!" ›$ " /-3!# ›
' ' & ' ' & ' ' & ' ' & ' ' & ' ' &
- " š!/"G!"&B!# " Pu%™!" " û!/ % !""
'
' ' & % ' ' & ' ' & % (
G!" & B!# % !" " v @ +'+ "* G& B +%+'+ "
@ %
'
&
&
' '
& '
' '
' '
&
aû$ G&% B "' " ¦ Pu%™ !# " û !/ % !#"G!" %
' ' & ' ' & % ( (
!# & B!# " v @ +%+ " G+'+%+ &, B " û' G&, B "
@ %
% " 45G* G&$ B "2'
# % $ÂÃA–EÃ" ªÛn°1¸é ¹g20IJ1é
' '
&
&
' '
#' 颚 $& '! š颚 ' "! % "#"% ; " v
颚
0ߛ0''24 $/0#0'%+0'(&(+0'(&%'$+0'(
'
&%+0'02"0',#' ‘ŸªÛn°1¸é ¹gJ1é0 颚 ' :8 -./ "" :8 /78" " R û =58""
'
ߛ0''24 $50$;Ì:#0',#' 颚 ' " Ÿ"0 # 0 " % $" &"" % ' š¼w
'
# ' $ªÛn„°1¸é ¹20IJ1é0$ØHE#
H Rû 8 " : " 9 "%'
( /78 ! /78 # /78 "
( (" # 0'02+(&0'(2+'&0'%2+%&0''2+,&0',2
20
‘#/78 !&/78 #"% $/78 ! /78 # " & 8 & : "% 颚 $+ 8: "
颚
+*&0'22+%$&0'$2+2 $ "0',#' ªÛn°1ÿ¸é % ,
( % % %
"
¹g20IJ1é0$ØHE# ( %" # 0'02+(&0'(2 Rû 8 & : 颚 $ 8: ' š xw H R û '"9 "8 & : )
20
%
%
%
%
%
+2&0'%2+('&0''2+(0&0',2+($&0'22+2 $ " % 8: -./ ' " 8 & : ) 8: " # 8 & : $ )' 8: " †% # 8: $ ) 8: )
0''2' ;Ì°1¸é ¹g" ^-R¸ºé# 0',#)0''2 $
("0 " ‘#8: 4 0 " aû8: "( " @A8 & : 颚 $ 8: 颚 $' ‘
"
"
'
+'$2",3',2 # 4 $ '
" $&
Ÿ" 2 !"# $‹œ#8& 9 & : 颚 颚 ''
!)' x-8? ! a0# ( $ÕAö. 0 M¬¶è¤" &* # . $
( , ( &'2¹ 颚 ,' ! `ç" ( !-* "$ —!-""$ " ¬r-$ "
"# $ " '
% ($ -# " & + #!- # ¹àL$ #ùÙq” !# " "$ @¬$
# % $ÕAö! #M´" Aö" #N´" Aö# #O´" & L" @A + #!-"$01 ¹ + #!-"(%01' ‘# !-*"$ —
è»7&¼z$50# *C"* # !"!" $ & * # !#!# $ & !-" "$ " @Aèu<!"$- dضèu<" @A $-*
( , ( !" " $- "!" ",' ‘ # !" 3!# " !" 3"$ " @ A
* # "#"# $ & * # "!"! $ ",+# $" " @A|}µ¶–
% ,
-$3 !# " -$3 !- " !#7 !-" ! " @A-$3 ØÙ!-# "
'
ˆ¤z$50 *"() *C " '
, #-9 ØÙ !-# " @A -$3 #- " !#"!-"' " m + #!-
# ' $ÕAö! #M´" Aö" #N´" Aö# #O´" Õ "$01 " &#-"' " #$" ' &, "2' m + #!-"(%01 " &
%
%
颚
Aö & 0 M˜©š¶" ÕAö % 0 O˜©š¶' &Mµ$ #-"%+'/78$01"' ' " #$" %3&($" ,'' †”•
颚
颚
颚
) X A ö  Ÿ0 "#"# " !"#"# " !#"#" " "!"## "
#$ $œ#2¹ 颚 ,''
"!#"# " "#!#" " "#!"# " "#"!# " @AM˜©š¶$
( , ( 2 *
50 * # & $ "# $ &3+# $" ' š¥Ñ´Rj" N
% % '%
˜©š¶$50MM˜©š¶$50Sª" @AO˜©š
* 3
¶$50* # % $ "()%+ " '
'% ($
GHIJ( # K"6 ! K"%6$ !!
# F&!$ # F'!$
%
%
!'; ! š0 &% 0 &%" # 0 &( $ &( 4 0 " ûE nR=#‚
%
"
"
''< ! š!"" #$"( " "# 颚 % " "$ 颚 ' " û"# & #$ %
E" @A <W- ŸE¥Õ$%!‚œ$–" 5E; E ¥
%
颚
%
颚
%
Õ$%?›‚œ¥Ñ" E ¥Õ$%!‚œ$ò" @A ; " "$ " &"#3 #$ " Rû!#" !" & #" " ' " !$"