鍒樹細鑲茶�佸笀宸ヤ綔瀹?/p>
鍒樿�佸笀杈呭路楂樹腑鏁板蹇呬慨
1
缁煎悎娴嬭瘯棰?/p>
濮撳悕
鏈瘯鍗峰垎绗厾鍗?/p>
(
閫夋嫨棰?/p>
)
鍜岀鈪″嵎
(
闈為�夋嫨棰?/p>
)
涓ら儴鍒嗭紟
婊″垎
150
鍒嗭紟
鑰冭瘯鏃堕棿
120
鍒嗛挓锛?/p>
绗厾鍗?/p>
(
閫夋嫨棰?/p>
鍏?/p>
50
鍒?/p>
)
涓�銆侀�夋嫨棰?/p>
(
鏈ぇ棰樺叡
10
涓皬棰橈紝姣忓皬棰?/p>
5
鍒嗭紝鍏?/p>
50
鍒嗭紝鍦ㄦ瘡灏忛缁欏嚭鐨勫洓涓�夐」涓紝
鍙湁涓�椤规槸绗﹀悎棰樼洰瑕佹眰鐨?/p>
)
1
锛庡凡鐭ラ泦鍚?/p>
A
锛?/p>
{1,2,3,4}
锛?/p>
B
锛?/p>
{
x
|
x
锛?/p>
n
2
锛?/p>
n
鈭?/p>
A
}
锛屽垯
A
鈭?/p>
B
锛?/p>
(
)
A
锛?/p>
{1,4}
B
锛?/p>
{2,3}
C
锛?/p>
{9,16}
D
锛?/p>
{1,2}
2.
宸茬煡鍑芥暟
f
(
x
)
鐨勫畾涔夊煙涓?/p>
(
锛?/p>
1,0)
锛屽垯鍑芥暟
f
(2
x
锛?/p>
1)
鐨勫畾涔夊煙涓?/p>
(
)
A
锛?/p>
(
锛?/p>
1,1)
B
锛?/p>
(
锛?/p>
1
锛岋紞
1
2
)
C
锛?/p>
(
锛?/p>
1,0)
D
锛?/p>
(
1
2
锛?/p>
1)
3
锛庡湪涓嬪垪鍥涚粍鍑芥暟涓紝
f
(
x
)
涓?/p>
g
(
x
)
琛ㄧず鍚屼竴鍑芥暟鐨勬槸
(
)
A
锛?/p>
f
(
x
)
锛?/p>
x
锛?/p>
1
锛?/p>
g
(
x
)
锛?/p>
x
锛?/p>
1
x
锛?/p>
1
B
锛?/p>
f
(
x
)
锛?/p>
|
x
锛?/p>
1|
锛?/p>
g
(
x
)
锛?/p>
飪?
飪?/p>
飪?/p>
飪?/p>
飪?/p>
x
锛?/p>
1
锛?/p>
x
鈮ワ紞
1
锛?/p>
x
锛?/p>
1
锛?/p>
x
<
锛?/p>
1
C
锛?/p>
f
(
x
)
锛?/p>
x
锛?/p>
2
锛?/p>
x
鈭?/p>
R
锛?/p>
g
(
x
)
锛?/p>
x
锛?/p>
2
锛?/p>
x
鈭?/p>
Z
D
锛?/p>
f
(
x
)
锛?/p>
x
2
锛?/p>
g
(
x
)
锛?/p>
x
|
x
|
4
锛庝笅鍒楀嚱鏁颁腑锛屽湪鍖洪棿
(0
锛岋紜鈭?/p>
)
涓婁负澧炲嚱鏁扮殑鏄?/p>
(
)
A
锛?/p>
y
锛?/p>
x
锛?/p>
1
B
锛?/p>
y
锛?/p>
(
x
锛?/p>
1)
2
C
锛?/p>
y
锛?/p>
2
-
x
D
锛?/p>
y
锛?/p>
log
0.5
(
x
锛?/p>
1)
5
锛庡嚱鏁?/p>
y
锛?/p>
ln
x
锛?/p>
2
x
锛?/p>
6
鐨勯浂鐐癸紝蹇呭畾浣嶄簬濡備笅鍝竴涓尯闂?/p>
(
)
A
锛?/p>
(1,2)
B
锛?/p>
(2,3)
C
锛?/p>
(3,4)
D
锛?/p>
(4,5)
6
锛?/p>
宸茬煡
f
(
x
)
鏄畾涔夊煙鍦?/p>
(0
锛?/p>
锛嬧垶
)
涓婄殑鍗曡皟澧炲嚱鏁帮紝
鑻?/p>
f
(
x
)>
f
(2
锛?/p>
x
)
锛?/p>
鍒?/p>
x
鐨勫彇鍊艰寖鍥存槸
(
)
A
锛?/p>
x
>1
B
锛?/p>
x
<1
C
锛?/p>
0<
x
<2
D
锛?/p>
1<
x
<2
7
锛庤
y
1
锛?/p>
4
0.9
锛?/p>
y
2
锛?/p>
8
0.48
锛?/p>
y
3
锛?/p>
(
1
2
)
-1.5
锛屽垯
(
)
A
锛?/p>
y
3
>
y
1
>
y
2
B
锛?/p>
y
2
>
y
1
>
y
3
C
锛?/p>
y
1
>
y
2
>
y
3
D
锛?/p>
y
1
>
y
3
>
y
2
8
锛庤
0<
a
<1
锛屽嚱鏁?/p>
f
(
x
)
锛?/p>
log
a
(
a
2
x
锛?/p>
2
a
x
锛?/p>
2)
锛屽垯浣?/p>
f
(
x
)<0
鐨?/p>
x
鐨勫彇鍊艰寖鍥存槸
(
)
A
锛?/p>
(
锛嶁垶锛?/p>
0)
B
锛?/p>
(0
锛岋紜鈭?/p>
)
C
锛?/p>
(
锛嶁垶锛?/p>
log
a
3)
D
锛?/p>
(log
a
3
锛岋紜鈭?/p>
)