AKADEMIYA o’quv markazi SHOHRUH SAPAROV (91) 539-67-67
TELEGRAM: @LIDER_MATEMATIKA
1.
Hisoblang:
8
0,(3)
−64
1,(3)
81
0,25
+9
A)
−
14
5
B)
−
14
3
C)
−
43
2
D)
−
127
6
2.
5; 8; 11; 14; …
arifmetik
progressiyaning
nechanchi hadidan boshlab 800 dan katta bo’ladi?
A)
266
C)
265
C)
264
D)
267
3.
Agar
𝑎 ∙ 𝑏
2
< 0
,
𝑎𝑏
2
− 𝑎𝑏 > 0
va
𝑏𝑐 < 0
bo’lsa,
quyidagilardan qaysi biri doimo o’rinli bo’ladi?
A)
𝑎 ∙ 𝑏 ∙ 𝑐 < 0
B)
𝑎 ∙ 𝑐 > 0
C)
𝑏 − 𝑐 < 0
D)
𝑏 + 𝑐 > 0
4.
{
2𝑎 − 𝑏 + 3𝑐 = 10
𝑎 + 5𝑏 + 2𝑐 = 3
4𝑎 + 5𝑏 + 6𝑐 = 18
tenglamalar
sistemasidan
𝑎 + 𝑏 + 𝑐
ni toping?
A)
6
B)
5
C)
2
D)
3
5.
Agar
12
3
∙ 10
𝑛
sonining
540
ta natural bo’luvchisi
bo’lsa,
𝑛
ni qiymatini toping?
A)
16
B)
8
C)
7
D)
12
6.
𝑥
2
− 3|𝑥| + 2 = 0
tenglamaning ildizlari
yig’indisini toping?
A)
−3
B)
3
C)
4
D)
0
7.
𝑦 = √𝑥
2
− 4
3
funksiyaning
aniqlanish sohasini
toping?
A)
[−2; 2]
B)
(−∞; −2] ∪ [2; ∞)
C)
(−∞; ∞)
D)
[2; ∞)
8.
Agar
(
3
4
𝑥 − 15)
2
+ (
1
2
𝑥 + 𝑦 − 4)
2
= 0
bo’lsa,
𝑦
ni qiymatini toping?
A)
1
B)
1,25
C)
2,4
D)
−6
9.
Agar
𝑓(𝑥 − 𝑎) = 3𝑥 + 5
va
𝑓(−1) = 20
bo’lsa,
𝑓(𝑎 − 5)
ni hisoblang?
A)
29
B)
26
C)
25
D)
24
10.
Agar
2𝑥
2
− (𝑚 + 2)𝑥 + 10 = 0
tenglamaning
ildizlari
uchun
𝑥
1
∙ 𝑥
2
2
+ 𝑥
2
∙ 𝑥
1
2
= 20
tenglik
o’rinli bo’lsa,
𝑚 =?
A)
−4
B)
6
C)
−6
D)
4
11.
Agar
𝑓(𝑢) =
𝑢
3
−64
𝑢
2
+4𝑢+16
bo’lsa,
𝑓
′
( √2
3
) =?
A)
1
B)
√2
C)
√2
3
D)
√2
12.
Mis, rux va qo’rg’oshindan iborat bo’lgan
15
kg
li qotishmaning
tarkibida
20 %
mis bo’lib, rux
qo’rg’oshinning og’irliklari mos ravishda
5: 1
nisbatda. Qotishmadagi ruxning og’irligi
misning og’irligidan necha kilogrammga ko’p?
A)
7
B)
4,5
C)
5
D)
6
13.
|𝑥 − 7| ∙ log
2
(𝑥 − 2) = 3 ∙ (𝑥 − 7)
tenglamaning ildizlari yig’indisini toping?
A)
9
1
8
B)
17
1
8
C) 17 D)
19
1
8
14.
Funksiyaning aniqlanish sohasiga
tegishli
bo’lgan barcha natural sonlar nechta?
𝑦 =
√24 − 2𝑥 − 𝑥
2
6
(𝑥+2)
2
−9
− 1
A)
2
B)
3
C)
5
D)
4
15.
𝑓(𝑥) = 𝑥
3
− 12𝑥 + 1
funksiyaning kamayish
oralig’ini toping?
A)
(−∞; −4]
B)
(−∞; −2)
C)
(−2; 2)
D)
(−4; 4)
16.
3
−5
≤ (
1
3
)
𝑥
2
+4𝑥
tengsizlikning
butun yechimlari
yig’indisini toping?
A)
−15
B)
−14
C)
−10
D)
−6
17.
𝑓(𝑥) = 2 tg 𝑥 − 4
funksiyaning qiymatlar
sohasi toping?
A)
(−6; −2)
C)
(−∞; −4)
B)
(−4; 4)
D)
(−∞; ∞)
18.
𝑥
4
− 𝑥
3
≤ 4𝑥
2
− 4𝑥
tengsizlikni nechta
butun
yechimi bor?
A)
7
B)
6
C)
5
D)
4
19.
𝑓(𝑥) =
√𝑥+3
|𝑥|−2
+ √12 − 𝑥
funksiya aniqlanish
sohasini nechta butun son tegishli?
A)
16
B)
15
C)
14
D)
13
AKADEMIYA o’quv markazi SHOHRUH SAPAROV (91) 539-67-67
TELEGRAM: @LIDER_MATEMATIKA
20.
−3 < log
1
2
(𝑥 − 5) ≤ −1
tengsizlikni yeching?
A)
(5; 13)
B)
(7; 13)
C)
(5; 7)
D)
[7; 13)
21.
Agar
0 ≤ 𝑥 ≤ 2𝜋
bo’lsa,
cos 2𝑥 + 7 sin 𝑥 + 3 = 0
tenglamaning ildizlari yig’indisini toping?
A)
2𝜋
B)
5𝜋
2
C)
3𝜋
D)
4𝜋
22.
Agar
𝑎 −
1
𝑎+1
= 4
bo’lsa,
(𝑎 + 1)
2
+
1
(𝑎+1)
2
=?
A)
24
B)
25
C)
26
D)
27
23.
||𝑥 + 1| − 3| = 2
tenglamaning ildizlari
yig’indisini toping?
A)
−8
B)
−4
C)
−2
D)
0
24.
{
9
𝑥
2
−𝑦
2
= 729
3
𝑥
=
3
3
𝑦
sistemadan
𝑥
ni toping?
A)
3
B)
2
C)
1
D)
−1
25.
Agar
𝑎 + 𝑏 = 2
bo’lsa,
𝑎
2
−𝑏
2
−2𝑏−1
𝑎
2
−𝑏
2
−𝑎−𝑏
ni hisoblang?
A)
1
2
B)
1
C)
3
2
D)
5
2
26.
Tenglamani yeching:
𝑙𝑔
2
99−𝑙𝑔
2
11
4lg 3
= lg (𝑥 − 1)
A)
31
B)
32
C)
33
D)
34
27.
Agar
𝐴 =
1
log
3
𝜋
+
1
log
4
𝜋
bo’lsa,
quyidagilardan
qaysi biri o’rinli?
A)
𝐴 < 1
B)
𝐴 <
3
2
C)
2 < 𝐴 <
5
2
D)
3 < 𝐴 < 4
28.
𝑥 < 0
bo’lsa,
𝑥
2
+7
3(𝑥−1)+𝑥(𝑥−1)
< 0
tengsizlikni nechta
butun yechimi bor?
A)
1
B)
2
C)
3
D)
4
29.
Tengsizlikning butun musbat yechimlari nechta?
(−𝑥
2
+ 𝑥 − 1)(𝑥
2
+ 𝑥 − 2)
(𝑥
2
− 7𝑥 + 12)
≥ 0
A)
4
B)
1
C)
2
D)
3
30.
(3𝑥+5)∙7
−𝑥+3
3−𝑥
> 0
tengsizlikning butun sonlardan
iborat ildizlari yig’indisini toping?
A)
0
B)
1
C)
2
D)
3
31.
Agar
1 ≤ 𝑎 ≤ 4
va
2 ≤ 𝑏 ≤ 4
bo’lsa,
𝑎 ∙ 𝑏
ko’paytma qaysi oraliqqa tegishli?
A)
[2; 16]
B)
[4; 8]
C)
[4; 16]
D)
[8; 16]
32.
Ildizlari
2
16
63
0
x
x
−
+
=
tenglamaning
ildizlaridan ikki marta katta bo`lgan
kvadrat
tenglama tuzing.
A) 8
𝑥
2
− 32𝑥 − 252 = 0
B)
𝑥
2
+ 32𝑥 − 252 = 0
C)
𝑥
2
− 32𝑥 + 252 = 0
D)
𝑥
2
+ 32𝑥 + 252 = 0
33.
Hisoblang:
ln 𝑒
−3
+ log
√3
81 + log
1
7
√7 + log
1
5
25
A)
0
B)
2
C)
3
2
D)
5
2
34.
Agar
𝑓(2𝑥) = (3𝑥 − 4)
4
bo’lsa,
𝑓
′
(2) =?
A)
−8
B)
−6
C)
−4
D)
−2
35.
Hisoblang:
lg
3
4
+ lg
4
5
+lg
5
6
+ ⋯ + lg
299
300
A)
−1
B)
−2
C)
3
D)
10
36.
Ushbu
𝑓(𝑥) = sin 2𝑥 + ln cos 2𝑥
funksiya
uchun
𝑓′ (
𝜋
6
)
ni toping.
A)
1
2
(1 − √3)
B)
1 − 2√3
C)
1 −
√3
2
D)
3
2
37.
𝑓(𝑥) = 4 sin 𝑥 + 4 cos 𝑥 + 4𝜋
funksiyaning
hosilasini toping.
A)
−4 sin 𝑥 − 4 cos 𝑥
B)
−4 sin 𝑥 + 4 cos 𝑥
C)
4 sin 𝑥 + 4 cos 𝑥
D)
4 sin 𝑥 − 4 cos 𝑥
38.
Dengiz suvida (og’irligi bo’yicha)
5 %
tuz bor.
40 kg dengiz suvining tuzini
2 %
li qilish uchun
unga necha kg chuchuk suv qo’shish kerak?
A)
40
B)
70
C)
60
D)
50
39.
Agar
𝑓(𝑥) = 𝑘𝑥 + 3
funksiya uchun
𝑓(2) = −3
munosabat o’rinli bo’lsa,
𝑓(−3) =?
A)
9
B)
12
C)
6
D)
2
40.
Tenglamaning nechta haqiqiy ildizi bor?
√9 − 𝑥 ∙ (𝑥
2
− 21𝑥 + 110) = 0
A)
3
B)
0
C)
2
D)
1