銆愬ゥ楣忋�戝悏澶?/p>
19
绉嬪鏈熴�婇珮绛夋暟瀛︼紙鐞嗕笓锛?/p>
銆嬪湪绾夸綔涓氫簩
璇曞嵎鎬诲垎
:100
寰楀垎
:100
涓�銆佸崟閫夐锛堝叡
15
棰橈紝
60
鍒嗭級
1
銆佺洿绾?/p>
y=2x, y=x/2, x+y=2
鎵�鍥存垚鍥惧舰鐨勯潰绉负
( )
A3/2
B2/3
C3/4
D4/3
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]
鍙傝�冮�夋嫨鏄細
B
2
銆佸凡鐭?/p>
u= xyz,
鍒?/p>
x=0,y=0,z=1
鏃剁殑鍏ㄥ井鍒?/p>
du=
锛堬級
Adx
Bdy
Cdz
D0
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鍙傝�冮�夋嫨鏄細
D
3
銆?/p>
f(a)f(b)<0,
鏄柟绋?/p>
f(x)=0
鍦紙
a,b
锛夋湁瑙ｇ殑锛堬級
A
鍏呭垎鏉′欢锛岄潪蹇呰鏉′欢
B
闈炲厖鍒嗘潯浠讹紝蹇呰鏉′欢
C
鍏呭垎蹇呰鏉′欢
D
鏃犲叧鏉′欢
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]
鍙傝�冮�夋嫨鏄細
D
4
銆佸凡鐭ュ嚱鏁?/p>
y= 2cos3x-5e2x,
鍒?/p>
x=0
鏃剁殑寰垎
dy=
锛堬級
A10
B10dx
C0
D0dx
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]
鍙傝�冮�夋嫨鏄細
D
5
銆佽鍑芥暟
f(x)=x^2+1
锛屽垯
f(x+1)=( )
Ax^2+2x+2
Bx^2x+2
Cx^2+6x+10
Dx^2-6x+10
[
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鍙傝�冮�夋嫨鏄細
C
6
銆侀泦鍚?/p>
B
鏄敱鑳借
3
闄ゅ敖鐨勫叏閮ㄦ暣鏁扮粍鎴愮殑锛屽垯
B
鍙〃绀烘垚
A{3
锛?/p>
6
锛屸�︼紝
3n}
B{
卤
3
锛屄?/p>
6
锛屸�︼紝卤
3n}
C{0
锛屄?/p>
3
锛屄?/p>
6
锛屸�︼紝卤
3n
鈥?/p>
}
D{0
锛屄?/p>
3
锛屄?/p>
6
锛屸�β?/p>
3n}