Toshloq
tumani
A) 6
B)
C)
D)
E)
4.
ni soddalashtiring.
A)
B) 3
C)
D) 1
E)
5.
ni soddalashtiring.
A)
B)
C)
D)
E)
6.
ni soddalashtiring.
A) 4
B) 2
x
C) –2
x
D) 0
E) –4
7.
ni soddalashtiring.
A) 1
B) –1
C)
b
-1
D)
E) –
b
–1
8.
ni soddalashtiring.
A)
b
2
-
a
2
B)
a
2
-
b
2
C) (
a-b
)
2
D) (
a+b
)
2
E)
a
2
+
b
2
9.
ni soddalashtiring.
A)
B)
C)
D)
E)
4. Darsni yakunlash.
5. Uyga vazifa: test yechish tematik axborotnomalardan
Tayyorladi: _________________________
Tekshirdi: O‘TIBDO‗ : __________ _________________________
―_____‖____ 201 y.
6
6
a
6
1
a
6
a
6
a
3
)
3
(
3
9
1
5
:
9
6
14
3
5
2
2
m
m
m
m
m
m
m
m
m
3
3
m
3
m
3
3
m
m
3
3
2
2
3
3
2
2
b
a
b
ab
a
b
a
b
ab
a
2
2
2
a
b
b
2
2
2
b
a
a
2
2
2
b
a
b
2
2
2
a
b
a
2
2
b
a
b
2
4
4
2
8
2
2
3
x
x
x
x
x
2
2
4
2
1
1
:
1
1
b
b
b
b
b
1
1
b
ab
b
a
b
a
b
a
b
ab
b
a
a
3
3
3
2
2
3
:
3
3
4
2
1
1
1
2
2
m
m
m
m
m
m
m
4
2
2
2
m
m
2
m
m
4
2
2
m
2
1
m
2
4
1
2
m
m
Toshloq tumani
Sana:_____________
21-mashg‘ulot
Dars mavzusi
.
Bir noma’lumli tenglamalar.
Dars maqsadlari
: o‗quvchilarga bir noma‘lumli tenglamalarni yechishni o‗rgatish,
ularning fanga qiziqishlarini oshirish.
Darsning borishi
:
1. Tashkiliy qism.
2. Bir noma’lumli tenglamalar.
Bir noma’lumli tenglamalar.
ax
=
b
ifodaga bir noma‘lumli chiziqli tenglama deyiladi va uning ildizi
bo‗lib, u
uch xil ko‗rinishga ega bo‗lishi mumkin:
1)
a
0,
b
R
,
yechim yagona
2)
a
=0,
b
0,
x
yechim yo‗q
3)
a
=0,
b
=0,
x
R
yechim cheksiz ko‗p.
1-misol: Tenglamani yeching.
.
Yechish:
.
2-misol:
a
ning qanday qiymatida
ax+a
=5
x
+8 tenglama yagona yechimga ega?
Yechish:
3-misol:
k
ning qanday qiymatida
k
+4
x
=
k
2
x
+2 tenglama yechimga ega emas?
Yechish:
;
Javob:
k
=-2.
4-misol:
m
ning qanday qiymatida 6+
m
2
x
=36
x
+
m
tenglama cheksiz ko‗p yechimga
ega?
Yechish:
:
1)
2)
Javob:
m
=6.
3. Mustahkamlash.
Test yechiladi.
TESTLAR.
1.
tenglamani yeching.
A) 21 B)
C)
D)
E)
2.
n
ning
qanday qiymatlarida
nx
+1=
n+x
tenglama cheksiz ko‗p yechimga ega bo‗ladi?
A)
n
1 B)
n
=2 C)
n
=1 D)
n
=0 E)
n
=-2
3.
a
ning qanday qiymatlarida
ax
=2
x
+3 tenglama yechimga ega bo‗lmaydi?
A)
a
-2
B)
a
2
C)
a
=2
D)
a
1
E)
a
=0
a
b
x
a
b
x
35
7
3
3
5
x
x
1
14
14
21
35
14
35
21
9
5
x
x
x
x
x
.
5
5
8
8
5
8
5
a
a
a
x
a
a
x
a
x
ax
:
2
4
2
4
2
2
k
k
x
k
x
k
x
2
0
4
)
1
2
k
k
2
0
2
)
2
k
k
`
6
36
6
36
2
2
m
m
x
m
x
x
m
.
6
0
36
2
m
m
6
0
6
m
m
5
5
1
:
22
19
3
4
х
22
3
17
22
3
18
22
19
17
11
3
18
Toshloq tumani
4.
tenglamani yeching.
A) 8
B) 11
C) 17
D) 14
E) 4,5
5.
tenglamani yeching.
A)
B)
C)
D)
E)
6.
tenglamani yeching.
A) 1,2 B) 2,5 C) -3 D) 2 E) 0,2
7.
tenglamani yeching.
A) 20 B) 2 C) 0,2 D) 0,5 E) to‗g‗ri javob keltirilmagan.
8.
tenglama
a
ning qanday qiymatlarida yagona yechimga ega?
A)
B)
C) D)
E)
9.
m
ning qanday qiymatlarida
tenglamaning ildizlari cheksiz ko‗p bo‗ladi?
A)
m
=1 B)
m
=0 C)
m
=-1 D)
E)
10.
tenglama yechimga ega bo‗lmaydigan
a
ning barcha qiymatlari yig‗indisini
hisoblang.
A) 1 B) 2 C) 0 D) -1 E) –2
11.
tenglama
a
ning qanday qiymatida yechimga ega emas?
A) 4 B) 2 C) -2 D) 6 E) –6
12.
a
ning
tenglama yechimga ega bo‗lmaydigan
barcha qiymatlari
ko‗paytmasini hisoblang.
A) 4 B) -4 C) 0 D) 2 E) –2
13.
tenglama
k
ning qanday qiymatida yechimga ega emas?
A)
B)
C)
D) 1 E)
14.
a
ning qanday qiymatlarida
ax
-2
a
=2 tenglama birdan kichik ildizga ega bo‗ladi?
A)
a
(-2;0) B)
a
(-
;0) C)
a
(0;1) D)
a
[1;2] E)
a
R
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