2. a • b • c = 4 bo’lsa, (“ - b • c) (2 - a • c) (3 a • b) ko’paytmaning qiymatini toping.
A) 1 B) 2 C) -3 D)-5
3 2 3
3. Ketma - ket kelgan ikkita musbat juft sonlar kvadratlarining ayirmasi 116 ga teng. Ushbu sonlardan kichigini toping.
A) 32 B) 30 C) 26
4. Agar x<-2 bo’lsa,
D) 28
Vx2 + 6x + 1 + ^9 soddalashtiring.
A) 2-x B) x+2
- 12x + 4x2ifodani
C) —x-2
D) -2x
Agar 2a= 81, 3b = 8 bo’lsa a • b ning qiymatini toping.
A) 13 B) 11 C) 12 D) 10
Agar a = 1-2 + 2- 3 + 3- 4 + --- + 40 • 41 b = 5 • 4 + 10 • 6 + 15 • 8 + - + 200 • 82 bo’lsa,
a=?
b
A)1 B) - C) -
6 10 12
d)8
Agar a = ^З5bo'lsa, Va - 2Va - 1 + Va + 2Va - 1 ifodaning qiymatini toping.
A) V2 B) 5 + V21 C) 2 D) ^3
Rasmda qanday uchburchaklar tasvirlangan?
A) Uchburchaklardan biri to'g'ri burchakli
yuzalari har xil
perimetrlari bir xil
tengdosh
9. Quyidagi rasmda berilganlarga ko’ra x ni toping.
A) 15 B) 16 C) 13 D) 14
л 4 + : 4 + 4
4
4 5ni hisoblang.
A) - B) -1 C) 1 D) 1
12 2 6 2
Asosi a ga, yon tomoni b ga teng bo’lgan teng yonli uchburchakning yon tomoniga
tushurilgan mediana uzunligini toping.
A) mb = 1Va2 + 2b2 B) mb = 1V2a2 + b2
C) mb = 2V2a2 + b2 D) mb = 2Va2 + 2b2
12. /^(x5 + 3x3 + 3x)dx aniq integralni hisoblang.
A) 3 B) 7 C) - D) 0
4 3 24
Agar x1va x2sonlari x2 + 3x + 1 = 0 tenglamaning ildizi bo’lsa, (— )2+(-^-)2
X2+1 X2+1
A) 18 B) 27 C) 36 D) 9
35_2X = 1ni hisoblang.
4-3Y3+2X
A) 0 B) 137 C) 139 D) 3176 176 16
Hisoblang:
ctg150 + ctg300 + ctg450 + + ctg1650
A) 1 B) -1 C) ctg890 D)0
Aga a natural sonni 49 ga bo’lganda bo’linma n, qoldiq n2ga teng bo’lsa, a sonining eng kata qiymatini toping.
A) 392 B) 270 C) 212 D) 330
Hisoblang: arccos(cos3)
A) 3я-3 B) 3 C) 7-3 D)0
a • b • c = 7 bo’lsa, (“ - b • c) (5 - a • c) (6 - a • b) ko’paytmaning qiymatini toping.
A) 3 B) -5 C) 1
3
D)-6
7
19. Ketma-ket kelgan ikkita musbat toq
sonlar kvadratlarining ayirmasi 152 ga teng.
Ushbu sonlardan kichigini toping.
A) 37 B) 39 C) 35 D) 41
20. Agar x<-6 bo’lsa,
Vx2 + 13x + 30 + V36 - 12x + x2ifodani
soddalashtiring.
A) x+2 B)-x-6 C)2-x D)-2x
21. a,b,c musbat butun sonlar uchun x=4a+3=5b+4=6c+5 tenglikllar bajarilsa, x uch xonali sonning eng kata qiymatini toping. A) 999 B) 959 C) 945 D) 976
= 1 bo’lsa
cos2a ning qiymatini toping.
A) 0.28 B) -0.8 C) 0.96 D) -0.6
23. 390 gram suvga 110gramm tuz aralashtirildi. Hosil bo’lgan aralashmaning necha foizi tuzdan iborat bo’ladi.
(a2 -6a +9)x = a2 -4a +3 tenglama a ning qanday qiymatida cheksiz ko’p yechimga ega? A) a=5 B) a=1 C) a=1 ; a=3 D) a=3
A{2,3,4,5,6} to'plamning nechta qism to'plamida 3 va 6 elementlari birga qatnashadi? A) 8 B) 16 C) 24 D) 18
To’gri burchakli uchburchakka ichki va tashqi chizilgan aylana radiuslari uzunliklari yig’indisi 7 ga, gipotenuzasi esa 10 ga teng. Uchburchakning peremetrini toping.
A) 24 B) 12 C) 14 D) 20
Muntazam ko’pburchakning tomoni unga tashqi chizilgan aylananing 100li yoyni tortib turadi. Muntazam ko’pburchakning tomonlari sonini toping.
A) 36 B) 24 C) 26 D) 28
A(-8;-3) va B(-2;3) nuqtalar berilgan.Agar B nuqta AC kesmaning o’rtasi bo’lsa, C nuqta koordinatalar yig’indisini toping.
A) 19 B) -5 C)13 D)-4
ABCDEF muntazam oltiburchakda AC, CE, BF,FD dioganallar o’tkazilgan.AC va BF dioganallar L nuqtada , CE va FD dioganallar K nuqtada kesishadi. Agar oltiburchak tomoni
2 V3 ga teng bo’lsa, LCK uchburchakni yuzini toping.
A) 9 V3 B) 4 V3 C) 9 V3 D) 6 V3
Qaysi mamlakat aholisining etnik tarkibi 250 tadan ziyod mahalliy millat va elatlardan iborat?
A) Hindiston B) Nigeriya
C) Indoneziya D) Niger
Toshkent shahridan 74 km shimoli sharqda qanday marmar koni joylashgan?
A) Orkutsoy B) G’azg’on
C) Oqtosh D) Qoratosh
Bazalt qatlam tarkibida qanday elementlar mavjud?
Vodorod, alyuminiy, magniy
Kaliy, natriy, xlor
Temir, magniy, kalsiy
Kaliy, kalsiy, natriy
Quyidagi ma’lumotlar asosida havoning sutkalik o’rtacha haroratini hisoblang: soat 01:00 da 20C, soat 04:00 da 10C, soat 7:00 da 90C, soat 10:00 da 150C, soat 13:00 da180C, soat 16:00da 250C, soat 19:00 da 200C, soat 22:00 da 100C
A) 13,30C B) 10,60C C) 12,50C D) 9,80C
1 smda 50 km masshtabni sonli masshtabga aylantiring
A) 1:500000 B) 1:5000000
C) 1:50000000 D) 1:5000
Janubiy Amerikaning qaysi iqlim mintaqasida yozda yog‘in ko‘p yog‘adi (1000-2 000 mm), o‘rtacha oylik harorat +25 °C dan oshadi?