Kiem tra co Ma Tran toan 7 chuong 4 Dai so.doc

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
;*1/5
.
#*
,-</
1
5

 2-1/
.
5 6-=>/
1
5
 
8->/
1
5

Câu 3:6+(,?

yx
.
1

@2?

1

yx
@6?=./
.
5@8?/5
.
A
,-2B+(CD&EF& 6-+(,;*2D&EF&
2-+(,;*6D&EF& 8-+(8;*6D&EF&
Câu 4:G+(1/
.
5
3
HA'I#*
,- 2-< 6-7 8-J
Câu 5:KL:'!(


.
x y−
F/?.;*5?=#*
,-.2- 6-<8-M
Câu 6:2I:(/

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

4./
1
01/
.
47/4
9P/?O/4/
'9Q/?O/0/
9&L:'!:P/F/?=.
Câu 9 (4,5 điểm):
R/'S
 
   3
 
a x
+ = −
'9&L:'!(6?
.
.  1
. 
x x
x
− +
−
F
1
.
x =

6(/?/
.

4/4'
TLU)B;*''S?=?1
VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV
VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV
VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV
VVV
VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV
VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV
VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV
VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV
VVVV
Hướng dẫn chấm, thang điểm (đề 3)
Phần
Câu Nội dung Điểm
W
 8 M.
. 8 M.
1 2 M.
3 6 M.
 6 M.
< , M.
WW
7
. . 1
1 
> 3
? = - -/ -/5 -5 
< 1
1
?= -5

3
x
 
 ÷
 

J
P/?1/
3
0./
1
4/
.
03/44=1/
3
4./
1
01/
.
47/4
?1/
3
01/
3
40./
1
4./
1
4/
.

01/
.
4=3/47/44
?./
.
41/4<

'Q/?1/
3
0./
1
4/
.
03/40=1/
3
4./
1
01/
.
47/4
?1/
3
41/
3
40./
1
0./
1
4/
.

41/
.
4=3/07/40
?</
3
03/
1
4J/
.
0/03

P=.?.=.
.
41=.4<?J0<4<?J

>

 <  .< 
 3 
    .<
x x x
−
= − − ⇒ = ⇒ =
−
'R
1
.
x =

 .

1 1
@
. .
x x⇒ = − =
5/

?=1X.;*'!(6Y
6?
.
1 1
.  1

. .
1
3
. 
.
   
× − − × − +
 ÷  ÷
−
   
= ×××=
 
× − −
 ÷
 
5/
.
?1X.;*'!(6Y

6?
.
1 1
.  1
. .
M
1
. 
.
   
× − × +
 ÷  ÷
   
= ×××=
 
× −
 ÷
 
I5Z/

?=1X.R6?=X3
Z/
.
?1X.R6?M
?
⇔
4'?M
⇔
?='
=?1

⇔
=4'?..
5;*.A
=='4'?.
⇔
.'?.
⇔
'?
⇒
?=




,-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(
Nhận biết Thông hiểu Vận dụng
 e  e  e
Khái niệm về biểu thức đại số
Giá trị của một biểu thức đại số

M



Đơn thức
.

.


.
Đa thức

M

3
Tổng
1

1

1
7
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