Kiem tra co Ma Tran toan 7 chuong 4 Dai so - Pdf 25

KIEÅM TRA CHÖÔNG IV Điểm
 ……………………………….
Ñeà 3
I . TRẮC NGHIỆM : 
 !"#$%&
Câu 1:&'!()!'!(*#*+(
,-./01 2-3/45
.
6-7/45 8-3
Câu 2:9:1/
.
5
1
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1
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1
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8->/
1
5

Câu 3:6+(,?

3
54</
.
5
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45
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4#*
,-J2-<6-8-3
II. TỰ LUẬN : (8,5 điểm)
Câu 7 (1 điểm): !&N+()!
. .
>
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x y−
-
1
1
3
xy

Câu 8 (3 điểm):6(O/?1/
3
0./
1
4/
.
03/4
;*/?=1/
3

4/4'
TLU)B;*''S?=?1
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Hướng dẫn chấm, thang điểm (đề 3)
Phần
Câu Nội dung Điểm
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01/
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4=3/47/44
?./
.
41/4<

'Q/?1/
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1
4/
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03/40=1/
3
4./
1
01/
.
47/4
?1/
3
41/
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1 1
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x x⇒ = − =
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?=1X.;*'!(6Y
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=4'?..
5;*.A
=='4'?.

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?=




,-O[C!
− &(\S]!:N)&+&W-
− ^_Z`a&;IE[&ZS(bN&"'*I]-
− Q!'*ZZc) !\)BZS(+'":+&W-
2\E!&
Ma trận
6d]\E!5
\E!&ZS(
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