1
/
11
绗簩鍗佷竴绔犱竴鍏冧簩娆℃柟绋嬪崟鍏冩祴璇?/p>
涓�銆佸崟閫夐锛堝叡
10
棰橈紱鍏?/p>
30
鍒嗭級
1
銆佷笂娴蜂笘鍗氫細鐨勬煇绾康鍝佸師浠?/p>
168
鍏冿紝杩炵画涓ゆ闄嶄环
a%
鍚庡敭浠蜂负
128
鍏?/p>
.
涓嬪垪鎵�鍒楁柟绋嬩腑姝ｇ‘鐨勬槸锛堬級
A
銆?/p>
168
锛?/p>
1+a
锛?/p>
2
=128 B
銆?/p>
168
锛?/p>
1-a%
锛?/p>
2
=128
C
銆?/p>
168
锛?/p>
1-2a%
锛?/p>
=128 D
銆?/p>
168
锛?/p>
1-a
2
%
锛?/p>
=128
2
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鐩哥瓑锛屽叏閮ㄥ崠瀹屽悗锛屼袱浜烘寜涓嬮潰鐨勬柟娉曞垎閽憋細鍏堢敱鐢叉嬁鍗佸厓锛屽啀鐢变箼鎷垮崄鍏冿紝濡傛杞祦锛屾嬁鍒版渶鍚庯紝鍓╀笅
涓嶈冻鍗佸厓锛岃疆鍒颁箼鎷垮幓銆備负浜嗗钩鍧囧垎閰嶏紝鐢插簲璇ユ壘琛ョ粰涔欏灏戝厓锛燂紙
锛?/p>
A
銆?/p>
1
鍏?/p>
B
銆?/p>
2
鍏?/p>
C
銆?/p>
3
鍏?/p>
D
銆?/p>
4
鍏?/p>
3
銆佸凡鐭ュ叧浜?/p>
x
鐨勬柟绋?/p>
(m+3)x
2
+x+m
2
+2m-3=0
鐨勪竴鏍逛负
0
锛屽彟涓�鏍逛笉涓?/p>
0
锛屽垯
m
鐨勫�间负锛?/p>
锛?/p>
A
銆?/p>
1 B
銆?/p>
-3 C
銆?/p>
1
鎴?/p>
-3 D
銆佷互涓婂潎涓嶅
4
銆佺敤鍥犲紡鍒嗚В娉曡В鏂圭▼锛屼笅鍒楁柟娉曚腑姝ｇ‘鐨勬槸锛?/p>
锛?/p>
A
銆?/p>
(2x
锛?/p>
2)(3x
锛?/p>
4) =0
鈭?/p>
2
锛?/p>
2x=0
鎴?/p>
3x
锛?/p>
4=0 B
銆?/p>
(x+3)(x
锛?/p>
1)=1
鈭?/p>
x+3=0
鎴?/p>
x
锛?/p>
1=1
C
銆?/p>
(x
锛?/p>
2)(x
锛?/p>
3)=2
脳
3
鈭?/p>
x
锛?/p>
2=2
鎴?/p>
x
锛?/p>
3=3 D
銆?/p>
x(x+2)=0
鈭?/p>
x+2=0
5
銆佸凡鐭ノ憋紝尾鏄叧浜?/p>
x
鐨勪竴鍏冧簩娆℃柟绋?/p>
x
2
+
锛?/p>
2m+3
锛?/p>
x+m
2
=0
鐨勪袱涓笉鐩哥瓑鐨勫疄鏁版牴锛屼笖婊¤冻
锛?
鍒?/p>
m
鐨勫�兼槸
A
銆?/p>
3
鎴栵梗
1 B
銆?/p>
3 C
銆?/p>
1 D
銆侊梗
3
鎴?/p>
1
6
銆佹柟绋?/p>
x
2
=9
鐨勮В鏄紙
锛?/p>
A
銆?/p>
x
1
=x
2
=3 B
銆?/p>
x
1
=x
2
=9 C
銆?/p>
x
1
=3
锛?/p>
x
2
=
锕?/p>
3 D
銆?/p>
x
1
=9
锛?/p>
x
2
=
锕?/p>
9
7
銆佸鏋滃叧浜?/p>
x
鐨勪竴鍏冧簩娆℃柟绋?/p>
x
2
锕?/p>
6x+2k=0
鏈変袱涓疄鏁版牴锛岄偅涔堝疄鏁?/p>
k
鐨勫彇鍊艰寖鍥存槸锛?/p>
锛?/p>
A
銆?/p>
k
鈮?/p>
B
銆?/p>
k
C
銆?/p>
k
D
銆?/p>
k
8
銆佸凡鐭?/p>
x=2
鏄柟绋?/p>
x
2
锕?/p>
6x+m=0
鐨勬牴锛屽垯璇ユ柟绋嬬殑鍙︿竴鏍逛负锛?/p>
锛?/p>