内容正文:
选修2-2
选修2-3
数
学
B
!!!#!#
!
*"#/0
!
1
"
2.!"
]^#$_`
!
abcd"#$&efgheig
!
.;jkQR
#
+
!
2
$
lmn&#$
#
%
'
&
&efg
heig
!
"!
(01
!
&½�>
+
!
2
& 'nFG
&
#
#
"
'
#
+��:(¾¿ÀoÁ+`a
!
klFG
&
#
#
"
'
#
&
+
!
2
& 'n¤
[
!!!!
Y
!!!!
!
)!
|}FG
#
'
"#
#'
+
*")'$0
&�>
*+
!
+
& 'n+Âp�YÂ��¥�/
3
!
/
!
7
3*/#
!!!!
!
+!
FG
&
#
#
'
"#&
+
!
2
& 'n
"
!!
#
,-
Cp�(�ÃC��p
/-
Cp�(�:Âp�
1-
Âp�(�:Cp�
4-
Âp�(�pqC��
"!
FG
#
'
"#
#'$)9:8'
&�>
(
!
#
)
& '
n�Âp�)
!
'
+�/
"
!!
#
,-( /-
#
.
1-
#
+
4-
#
)
)!
V�¦&
$
n+FG
#
"
'
#
+XFG/
#
(
"
'
#!
���
#(
"
'
#
%6)
#
#
"
'
#!
#
"
"
#
#3
!
7oª«
#
"
'
#
&
)
'$"
+
¬/
"
!!
#
,-
&
"
!
)
'
/-
&
"
!
$
>
#
!!
1-
"
*
>
!
"
'
4-
"
(
!
"
'
+!
FG
&
#
%6'
'
+Âp�/
"
!!
#
,-7
*"
/-7 1-7
)
4-
"(
+
3!
V
#
"
'
#!
.
"
'
#
&
&
+
!
2
'
nWX
!
�
#
(
"
'
#
#
.
(
"
'
#!
7@
+
%
'
%
2
)
!
[
"
!!
#
,-
#
"
'
#
#
.
"
'
#
/-
#
"
'
#
%
.
"
'
#
1-
#
"
'
#
$
.
"
+
#
#
.
"
'
#
$
#
"
+
#
4-
#
"
'
#
$
.
"
2
#
#
.
"
'
#
$
#
"
2
#
2!
2FG
#
"
'
#
#'
+
$$'
)
$'$"
"
$
)
$
#
&
*
)
+
!
*
"
+
" #
?:�FG
!
7�G
$
+��st/
"
!!
#
,-
"
)
!
$
>
#
/-
&
)
!
$
>
#
1-
5
3
!
$
>
" #
4-
5
3
!
$
>
& #
$
.!
VFG
#
"
'
#
#7
'
"
)'*"
#
*+'$+
!
ef
+
%
"
!
2¼&Ä(+ÅG
$
!
ÆÇ
#
"
$
#
%
(
!
7
+
+��st:
"
!!
#
,-
*
+
)7
!
"
& #
/-
*
+
)7
!
+
3
& #
1-
+
)7
!
+
3
& #
4-
+
)7
!
"
& #
$$
5!
|}FG
#
"
'
#
#'$+%6'
!
2
*
'
"
!
'
)
)
"
)
!
"
" #
"
'
"
+
'
)
#!
,
#
"
'
"
#
*
#
"
'
)
#
,#
"
'
"
*
"
'
)
!
7�G
+
0
选修2-2
选修2-3
数
学
B
+��st:
"
!!
#
,-
"
)
!
$
>
& #
/-
+
)
!
$
>
& #
1-
&
"
!
$
>
#
4-
&
)
!
$
>
#
$$
0!
VFG
#
"
'
#
:�¦&
"
*
>
!
(
#
n+WXFG
!
eXFG/
#
(
"
'
#!
�[
'
#
(
"
'
#
%
+
#
"
'
#!
7oª«
0
#
"
'$)("2
#
$
"
'$)("2
#
+
#
"
*)
#
#
(
+¬/
"
!!
#
,-
"
*
>
!
*)("5
#
/-
"
*)("5
!
(
#
1-
"
*)("5
!
*)("2
#
4-
"
*
>
!
*)("0
#
=!
|}FG
#
"
'
#
#'
+
$+'
)
$2'$-
&
'#*
)
+
Y
'#"
)Z�ÇC�
!
"
"
#
r
+
!
2
+�YFG
#
"
'
#
+g��>
(
"
)
#
2¡
'
)
&
*"
!
)
'!
oª«
#
"
'
#
%
-
)
ÈÉÊ
!
r
-
+��st
!
"(!
|}FG
#
"
'
#
#
"
'*,
#
7
'
!
"
"
#
r
#
"
'
#
+g��>
(
"
)
#
r
#
"
'
#
&�>
(
!
"
& 'n+��
!
""!
VFG
#
"
'
#
#"$
"
"$+
#
'*'
)
*'
+
!
ef
+
#
(!
"
"
#
²³
#
"
'
#
&e�