楂樹笁鏁板涓婂鏈熸祴璇曢
涓�銆佸崟閫夐
1
锛庤鍑芥暟
饾懄
=
鈭?/p>
饾懃
鈭?/p>
201
8
鐨勫畾涔夊煙涓?/p>
饾憖
锛屽嚱鏁?/p>
饾懄
=
饾憭
饾懃
鐨勫�煎煙涓?/p>
饾憙
锛屽垯
饾憖
鈭?/p>
饾憙
=
A
锛?/p>
(0,
+鈭?
B
锛?/p>
[
201
8
,
+鈭?/p>
)
C
锛?/p>
[0,
+鈭?
D
锛?/p>
(2018,
+鈭?
2
锛庡湪涓嬪垪鍑芥暟涓紝鏄伓鍑芥暟
,
涓斿湪
锛?/p>
0
锛?/p>
1
锛?/p>
鍐呭崟璋冮�掑噺鐨勬槸
A
锛?/p>
饾懄
=
2
饾懃
B
锛?/p>
饾懄
=
1
饾懃
C
锛?/p>
饾懄
=
lg饾懃
D
锛?/p>
饾懄
=
cos饾懃
3
锛庢墽琛屽鍥炬墍绀虹殑绋嬪簭妗嗗浘锛庤嫢杈撳嚭鐨勭粨鏋滄槸
16
锛屽垯鍒ゆ柇妗嗗唴鐨勬潯浠舵槸
A
锛?/p>
饾憶
>
6
?
B
锛?/p>
饾憶
鈮?/p>
7
?
C
锛?/p>
饾憶
>
8
?
D
锛?/p>
饾憶
>
9
?
4
锛庡湪
鈻?/p>
ABC
涓紝
a
锛?/p>
3
鈭?/p>
3
锛?/p>
b
锛?/p>
3
锛?/p>
A
锛?/p>
饾湅
3
锛屽垯
C
涓?/p>
A
锛?/p>
饾湅
6
B
锛?/p>
饾湅
4
C
锛?/p>
饾湅
2
D
锛?/p>
2饾湅
3
5
锛庡嚱鏁?/p>
饾懄
=
饾惔
sin
(
饾湐饾懃
+
饾湋
)
锛?/p>
饾湐
>
0,
|
饾湋
|
<
饾湅
2
,
饾懃
鈭?/p>
饾憛
锛夌殑閮ㄥ垎鍥惧儚濡傚浘鎵�绀猴紝鍒欏嚱鏁拌〃杈惧紡涓?/p>
A
锛?/p>
饾懄
=
鈭?
sin(
饾湅
8
饾懃
鈭?/p>
饾湅
4
)
B
锛?/p>
饾懄
=
鈭?
sin(
饾湅
8
饾懃
+
饾湅
4
)
C
锛?/p>
饾懄
=
4
sin(
饾湅
8
饾懃
鈭?/p>
饾湅
4
)
D
锛?/p>
饾懄
=
4
sin(
饾湅
8
饾懃
+
饾湅
4
)
6
锛庤
m,n
涓洪潪闆跺悜閲忥紝鍒?/p>
鈥?/p>
瀛樺湪璐熸暟
饾渾
锛屼娇寰?/p>
饾憵
=
饾渾饾憶
鈥?/p>
鏄?/p>
鈥?/p>
饾憵
鈰?/p>
饾憶
<
0鈥?/p>
鐨?/p>
A
锛庡厖鍒嗚�屼笉蹇呰鏉′欢
B
锛庡繀瑕佽�屼笉鍏呭垎鏉′欢
C
锛庡厖鍒嗗繀瑕佹潯浠?/p>
D
锛庢棦涓嶅厖鍒嗕篃涓嶅繀瑕佹潯浠?/p>
7
锛庡凡鐭ュ嚱鏁?/p>
飥?/p>
飥?/p>
2
2
2
2,
2
{
log
,
2
x
x
x
f
x
x
x
飥?/p>
飥?/p>
飩?/p>
飥?/p>
飥?/p>
锛岃嫢
0
R
x
飥?/p>
飪?/p>
锛屼娇寰?/p>
飥?/p>
飥?/p>
2
0
5
4
f
x
m
m
飩?/p>
飥?/p>
鎴愮珛锛屽垯瀹炴暟
m
鐨勫彇鍊艰寖鍥翠负
A
锛?/p>
1
1,
4
飪?/p>
飪?/p>
飥?/p>
飪?/p>
飪?/p>
飪?
飪?/p>
B
锛?/p>
1
,1
4
飪?/p>
飪?/p>
飪?/p>
飪?/p>
飪?/p>
飪?/p>
C
锛?/p>
1
2,
4
飪?
飪?/p>
飥?/p>
飪?/p>
飪?/p>
飪?
飪?/p>
D
锛?/p>
1
,1
3
飪?/p>
飪?/p>
飪?/p>
飪?/p>
飪?/p>
飪?
8
锛庤
饾懃
鈭?/p>
饾憛
锛屽畾涔夌鍚堝嚱鏁?/p>
sgn(饾懃)
=
{
1,
饾懃
>
0
0,
饾懃
=
0
鈭?,
饾懃
<
0
锛屽垯涓嬪垪绛夊紡姝ｇ‘鐨勬槸
A
锛?/p>
sin饾懃
鈰?/p>
sgn(饾懃)
=
sin|饾懃|
B
锛?/p>
sin饾懃
鈰?/p>
sgn(饾懃)
=
|sin饾懃|
C
锛?/p>
|
sin饾懃
|
鈰?/p>
sgn(饾懃)
=
sin
|
饾懃
|
D
锛?/p>
sin
|
饾懃
|
鈰?/p>
sgn(饾懃)
=
|
sin饾懃
|
浜屻�佸～绌洪
9
锛?/p>
i
涓鸿櫄鏁板崟浣嶏紝璁＄畻
(鈭?
鈭?/p>
饾憱)饾憱
=
_______________
銆?/p>
10
锛庡懡棰?/p>
鈥?/p>
鈭凁潙?/p>
鈭?/p>
(0,
+鈭?
锛屼娇寰?/p>
lg饾懃
>
0
鎴愮珛
鈥?/p>
鐨勫惁瀹氭槸
____________
銆?/p>
11
锛庡凡鐭ュ悜閲?/p>
饾憥
=(1,
鈭?/p>
3),
饾憦
=
(
鈭?/p>
3,
1)
锛屽垯
a
涓?/p>
b
澶硅鐨勫ぇ灏忎负
_________.
12
锛庤鍑芥暟
饾憮(饾懃)
=
饾懃
3
+
(饾憥
鈭?/p>
1)饾懃
2
+
饾憥饾懃
锛庤嫢
饾憮(饾懃)
涓哄鍑芥暟锛屽垯鏇茬嚎
饾懄
=
饾憮(饾懃)
鍦ㄧ偣
(0
锛?/p>
0)
澶勭殑鍒?/p>
绾挎柟绋嬩负
___________
锛?/p>
13
锛?/p>
宸茬煡瑙?/p>
饾浖
鐨勯《鐐逛负鍧愭爣鍘熺偣锛?/p>
濮嬭竟涓?/p>
饾懃
杞寸殑闈炶礋鍗婅酱閲嶅悎锛?/p>
缁堣竟涓婃湁鐐?/p>
饾惔(1
锛?/p>
饾憥)
锛?/p>
涓?/p>
cos2饾浖
=
2
3
锛?/p>
鍒?/p>
|饾憥|
=
___________
锛?/p>
14
锛庡浜庡嚱鏁?/p>
饾憮(饾懃)
锛岃嫢瀛樺湪涓�涓尯闂?/p>
饾惔
=
[饾憥,
饾憦]
锛屼娇寰?/p>
{
饾懄|饾懄
=
饾憮(饾懃),
饾懃
鈭?/p>
饾惔
}
=
饾惔
锛屽垯绉?/p>
A
涓?/p>
饾憮(饾懃)
鐨?/p>
涓�涓ǔ瀹氬尯闂达紝
鐩稿簲鐨勫嚱鏁?/p>
饾憮(饾懃)
鍙?/p>
鈥?/p>
灞�閮ㄧǔ瀹氬嚱鏁?/p>
鈥?/p>
锛?/p>
缁欏嚭涓嬪垪鍥涗釜鍑芥暟锛?/p>
鈶?/p>
饾憮(饾懃)
=
tan
饾湅
4
饾懃
锛?/p>
鈶?/p>
饾憮(饾懃)
=
1
鈭?/p>
饾懃
2
锛涒憿
饾憮(饾懃)
=
饾憭
饾懃
鈭?/p>
1
锛涒懀
饾憮(饾懃)
=
ln(饾懃
鈭?/p>
1)
锛屾墍鏈?/p>
鈥?/p>
灞�閮ㄧǔ瀹氬嚱鏁?/p>
鈥?/p>
鐨勫簭鍙锋槸
_____________
銆?/p>
涓夈�佽В绛旈
15
锛庡凡鐭ラ泦鍚?/p>
饾惔
=
{饾懃|
饾懃鈭?
饾懃+1
鈮?/p>
0,
饾懃
鈭?/p>
饾憛}
锛?/p>
B
锛?/p>
{
x
|
x
2
锛?/p>
2
x
锛?/p>
m
<0}
锛?/p>
(1)
褰?/p>
m
锛?/p>
3
鏃讹紝姹?/p>
饾惔
鈭?/p>
(鈭?/p>
饾憛
饾惖)
锛?/p>
(2)
鑻?/p>
A
鈭?/p>
B
锛?/p>
{
x
|
锛?/p>
1<
x
<4}
锛屾眰瀹炴暟
m
鐨勫�硷紟
