Test-2019 1-Variant
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2019 yil 30 ta lik variant
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- GULISTON – 2019 MATEMATIKAFLY MADINABONU O’QUV MARKAZI
- 20 – Variant.
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29. O’q kesimi kvadrat bo’lgan silindrning to’la sirti S ga teng bo’lsa, uning yon sirtini toping. A) 𝑆
B) 𝑆 3 C) 2𝑆 3 D) 5𝑆 6
30. Agar A(2;-2;3) va B(4;-1;5) bo’lsa, 𝐴𝐵 ⃗⃗⃗⃗⃗⃗
vector bo’yicha yo’nalgan birlik vektorni aniqlang. A) 𝑒⃗ ( 2
; 1 3 ; 2 3 ) B) 𝑒⃗(0; 0; 1) C) 𝑒⃗ ( 1
; 1 3 ; 1 3 ) D) 𝑒⃗ (− 2 3
1 3 ; − 2 3 ) 19 – Variant.
1. A(-2019;2019) nuqtani 𝑦 = 𝑥 funksiyaga nisbatan simmetrik ko’chirishdan hosil bo’lgan nuqtaning koordinatalarini toping. A) (-2019;-2019) B) (2019;-2019) C) (2019;2019) D) (-2019;2019)
2. (3𝑥) 𝑙𝑜𝑔 𝑥 4 + (4𝑥) 𝑙𝑜𝑔
𝑥 3 = 112 tenglamani yeching. A) √3 B) √5; 2 C) 2 D) −√3; √3
GULISTON – 2019 MATEMATIKAFLY MADINABONU O’QUV MARKAZI Telegramdagi manzilimiz: https://telegram.me/matematikafly 3. 𝑡𝑔11° = 𝑎 bo’lsa, 𝑠𝑖𝑛22°∙𝑐𝑡𝑔191° 𝑠𝑖𝑛79°∙𝑐𝑜𝑠349° ni a orqali ifodalang. A) 2 B) 𝑎 2
C) 𝑎 𝑎 2 +1 D) 𝑎 2 +1 𝑎
4. Dastlabki n ta hadining yig’indisi 𝑆 𝑛 = 𝑛 2 + 3𝑛 formula bilan aniqlanadigan arifmetik progressiya uchun 𝑎
𝑑 ni toping. A) n+1 B) n+3 C) 2n+3 D) n+2
5. lg 2 = 𝑥; lg 3 = 𝑦; lg 5 = 𝑧 𝑏𝑜 ′ 𝑙𝑠𝑎, lg 0,96 ni x,y,z orqali ifodalang. A) 𝑥 − 2𝑦 − 3𝑧 B) 3𝑥 + 𝑦 − 2𝑧 C) 2𝑥 + 3𝑦 + 𝑧 D) 3𝑥 − 𝑦 + 2𝑧
6. ∫ 𝑓(𝑥)𝑑𝑥 = 15 𝑣𝑎 9 2 ∫ 𝑓(𝑥)𝑑𝑥 = 8 9 6
bo’lsa, ∫ 𝑓(𝑥)𝑑𝑥 2 6 ni qiymatini aniqlang. A) 7 B) 23 C) -7 D) -23
7. Ayrim mulohazalarda o’zgaruvchilar qatnashib, shu o’zgaruvchilar o’rniga aniq qiymatlar qo’ysak, mulohaza hosil bo’ladi.Bunday mulohaza …….. deb ataladi. Nuqtalar o’rniga mos so’zni tanlang. A) predikat B) mulohaza C) rostlik D) mantiq
8. (3 + 1 2 + 1 3 + 1 5 + 1 4 + 1 9 + 1 25 + ⋯ ) −1
yig’indini hisoblang. A) 4 17 B) 4 19 C)
19 4 D) 2 19
9. 𝑃(𝑥) + 𝑃(𝑥 + 1) = 4𝑥 + 4 ko’phadga ko’ra P(7) ning qiymatini aniqlang. A) 11 B) 15 C) 13 D) 12
10. 6; 8 va 10 ga bo’lganda mos ravishda 4; 6 va 8 qoldiq qoladigan eng kichik natural sonni toping. A) 122 B) 88 C) 58 D) 118
11. [𝑥] + [3𝑥] + [5𝑥] = 4 tenglamani yeching. A) [
1 3 ; 2 5 ) B) [ 2 5 ; 2 3 )
C) [ 3 5 ; 2 3 ) D) [
2 3 ; 4 5 )
12. |𝑥 − 1| + |𝑦| ≤ 4 tengsizlik bilan berilgan soha yuzini toping. A) 8 B) 16 C) 4 D) 32
13. 𝑡𝑔15° − 𝑡𝑔75° ni soddalshtiring. A) 4 B) 2√3 C) -4 D) −2√3
GULISTON – 2019 MATEMATIKAFLY MADINABONU O’QUV MARKAZI Telegramdagi manzilimiz: https://telegram.me/matematikafly 14. 𝑦 =
𝑙𝑜𝑔 2 (𝑥 2 −1)
𝑠𝑖𝑛 2 𝑥−𝑠𝑖𝑛𝑥+0,25 funksiyaning aniqlanish sohasini toping. A) (−∞; −1) ∪ (1; ∞) B) ((−∞; −1) ∪ (1; ∞))\{(−1) 𝑛 ∙ 𝜋 6 + 𝜋𝑛; 𝑛 ∈ 𝑍, 𝑛 ≠ 0}
C
𝑛 ∙ 𝜋 6 + 𝜋𝑛; 𝑛 ∈ 𝑍}
D) R\{(−1) 𝑛 ∙ 𝜋 6 + 𝜋𝑛; 𝑛 ∈ 𝑍, 𝑛 ≠ 0}
1 𝑎+ 1 𝑏+ 1 𝑐+ 1 𝑑 = 17 60 tenglik o’rinli bo’lsa, a+b+c+d ning qiymanini aniqlang. A) 12 B) 13 C) 17 D) 14
16. Tengsizlikni yeching: 4 |𝑥|
−2 4𝑥−2
≥ 0
A) (−∞; − 1 2 ) ∪ [0; 1 2 ) ∪ ( 1 2 ; ∞) B) [0;
1 2 ) ∪ ( 1 2 ; ∞) C) (−∞; − 1 2
1 2 ) ∪ ( 1 2 ; ∞) D) (−∞; − 1 2
1 2 ; ∞) 17. Hisoblang:
0,438
0,03 + 0,072 0,12 + 0,088 0,04
A) 17,8 B) 17 C) 17,6 D) 17,4 18. ∫ cos 𝑥 ∙ 𝑠𝑖𝑛 7 𝑥𝑑𝑥
aniqmas integralni hisoblang. A) 𝑠𝑖𝑛
8 𝑥 8 + 𝐶 B) 𝑠𝑖𝑛 6
6 + 𝐶
C) −
𝑠𝑖𝑛 8 𝑥 8 + 𝐶
D) − 𝑠𝑖𝑛
6 𝑥 6 + 𝐶
19. Hisoblang: ∫ (𝑥 − 8) 7 𝑑𝑥 9 8
A) 0,125 B) 0,375 C) 10 3 D) 5 3
20. Agar 𝑥 = √29 bo’lsa, quyidagi ifodaning qiymatini toping. √𝑥 − 3 −
𝑥−12 √𝑥−3+3
+ 1
A) 5 B) 4 C) 3 D) 1
21. O’q kesimi kvadrat bo’lgan silindrning to’la sirti S ga teng bo’lsa, uning asos yuzasini toping. A) 𝑆
B) 𝑆 3 C)
2𝑆 3 D) 5𝑆 6
22. ABC uchburchakning AB va AC tomonlari mos ravishda √3 va 6 ga va A burchagi 30° ga teng bo’lsa, BC tomonga tushirilgan balandlikni toping. A)
√7 7 B) 2√7 7
C) 3√7
7 D) 4√7 7
23. To’g’ri burchakli uchburchakning kichik kateti 6 cm ga, kichik burchagi 30°
ga teng bo’lsa, uning eng katta medianasini toping. A) 6 B) 6√3
2
C) √117 D) √6 + √3
GULISTON – 2019 MATEMATIKAFLY MADINABONU O’QUV MARKAZI Telegramdagi manzilimiz: https://telegram.me/matematikafly 24. Agar A(3;4) va B(8;10) bo’lsa, AB kesmani A uchidan boshlab hisoblaganda 2:3 kabi nisbatda bo’ladigan nuqtaning koordinatalarini toping.
A) (5;4) B) (5; 6,4) C) (5,4; 6) D) (6,4;5)
25. ABCD parallelogrammda A(4;6), B(-3; 3) va D(2;1) bo’lsa, 𝐴𝐶 ⃗⃗⃗⃗⃗⃗ vektor bo’ylab yo’nalgan moduli ikkiga teng bo’lgan vektorni toping. A) 𝑎⃗ (− 18 √145 ; − 16 √145 )
B) 𝑎⃗ (− 9 √145 ; − 8 √145 )
C) 𝑎⃗ (− 16 √145
; − 18 √145 )
D) 𝑎⃗ (− 8 √145
; − 9 √145 )
26. Olti burchakli prizmaning nechta qirrasi bor? A) 6 B) 12 C) 18 D) 24
27. Teng yonli trapetsiyaning diogonali kichik burchak bisektrissasi va katta asosi 12 ga, perimetri esa 36 ga teng bo’lsa, uning o’rta chizig’ini toping. A) 11 B) 10 C) 9 D) 8 28. To’g’ri to’rtburchakning tomonlari 10 va 8 ga teng. Katta tomoni atrofida aylantirishdan hosil bo’lgan jismning to’la sirtini toping. A) 144𝜋 B) 180𝜋 C) 216𝜋 D) 288 𝜋 29. Muntazam sakkiz burchakning bitta ichki burchagi necha gradus? A) 135° B) 145° C) 120° D) 125°
30. ABC uchburchakning tomonlari 7;8 va 9 ga teng bo’lsa, bu uchburchakning turi qanday? A) o’tmas burchakli B) to’g’ri burchakli C) o’tkir burchakli D) bunday uchburchak mavjud emas
1. Hisoblang: sin 96° 16𝑠𝑖𝑛6°
− cos 6° ∙ cos 12° ∙ cos 24° ∙ cos 48°
A) 0 B) 0,25 C) 0,5 D) 1 2. Hisoblang:
22
+18 3 7 2 −3 2 − 22 ∙ 18
A) 10 B) 36 C) 81 D) 16
3. Yig’indining oxirgi raqamini toping: 1! + 2! + 3! + ⋯ + 10!
A) 4 B) 1 C) 5 D) 3
4. 8 nafar ishchidan 3 kishilik brigadani necha xil usul bilan tuzish mumkin. A) 42 B) 48 C) 56 D) 72
GULISTON – 2019 MATEMATIKAFLY MADINABONU O’QUV MARKAZI Telegramdagi manzilimiz: https://telegram.me/matematikafly 5. Tenglamaning ildizlarining yig’indisini toping: (𝑥 2 − 5𝑥 − 7) 2 − (𝑥 − 3)(𝑥 − 2) − 3 = 0 A) 10 B) 5 C) -10 D) 0
6. Hisoblang: 1 − 1 1− 1 1− 1 6
A) 1 B) 6 C) 0 D) 2 7. Soddalashtiring: 3 𝑚+1
+ 3 1−𝑚
(9 𝑚 + 1) ∙ (3 2−𝑚 + 3
1−𝑚 )
A) 0,25 B) 1,5 C) 2,5 D) 1,25
8. Uchta ovchining bir martadan o’q uzganda nishonga tegishi ehtimoli mos ravishda 0,8; 0,6 va 0,5. Har biri bir martadan otgan o’qidan ikkinchi va uchinchi ovchilarniki nishonga tegishi birinchisiniki tegmasligi ehtimolini toping. A) 0,06 B) 0,24 C) 0,58 D) 0,3
9. Agar 𝑐 > 𝑎 > 𝑏 > 0 bo’lsa, √(𝑐 − 𝑎) 2 ∙ (𝑎 − 𝑏) 2 ∙ (𝑐 − 𝑏) 2 ifoda
quyidagilardan qaysi biriga teng. A) (𝑐 − 𝑎)(𝑎 − 𝑏)(𝑐 − 𝑏) B) (𝑐 − 𝑎)(𝑏 − 𝑎)(𝑐 − 𝑏) C) (𝑐 − 𝑎)(𝑎 − 𝑏)(𝑐 − 𝑏) D) (𝑎 − 𝑐)(𝑎 − 𝑏)(𝑐 − 𝑏)
10. Ordinatalar o’qiga perpendekulyar bo’lgan 𝑦 = (𝑥 − 1) 2 ∙ 𝑒 𝑥 + 1
funksiyaning urinma tenglamasini toping. A) 𝑦 = 3 ∙ 𝑒 −1 + 1; 𝑦 = 1 B) 𝑦 = 2 ∙ 𝑒 −1 + 1; 𝑦 = 1 C) 𝑦 = 4 ∙ 𝑒 −1 + 1; 𝑦 = 1 D) 𝑦 = 𝑒
−1 + 1; 𝑦 = 1
(𝑥+𝑦−𝑧) 2 𝑥𝑦 ning qiymatini toping. A) 4 B) 3 C) 2 D) 1
12. 𝑓(𝑥) = 𝑥 4 − 4𝑥
3 + 22𝑥
2 − 36𝑥 + 18
funksiya biror natural sonning kvadrati bo’ladigan x natural sonni toping. A) 1; 3 B) 2; 3 C) 1; -3 D) -1; 3
13. Nechta tub son tengsizlikning yechimi bo’ladi? 𝑥 6 − 12𝑥 3 − 13 𝑥 8 + 9𝑥 6 + 8
≤ 0
A) 0 B) 3 C) 2 D) 1 14.
2 10 ∙ 2 100
∙ … ∙ 2 10 10 : 128
ni hisoblang. A) 8 ∙ 10 −54 B) 4 ∙ 10 −55
C) 8 ∙ 10 −55 D) 4 ∙ 10 −54
GULISTON – 2019 MATEMATIKAFLY MADINABONU O’QUV MARKAZI Telegramdagi manzilimiz: https://telegram.me/matematikafly 15. 𝑓(𝑥) = √ 3 6−𝑥
𝑣𝑎 𝑓(𝑥) = 1 bo’lsa, 𝑥 =?
16. 𝑎𝑟𝑐𝑡𝑔√5 + arcsin 1 √6
ni hisoblang. A)
𝜋 2 B) 𝜋 4
C) 𝜋 3 D) 𝜋 6
17. 2 −𝑥 = 2𝑥 − 𝑥
2 − 1
tenglama nechta yechimga ega? A) 1 B) 2 C) 3 D) 0
18. ((𝑎
−3 ) −2 ∙ (𝑎 −1 ) 3 ∙ 𝑎
−2 ) 3 ni soddalashtiring (𝑎 = 1 6
A) 216 B) 36 C) 1
D) 1 36
19. Soddalashtiring: sin( 5𝜋 2 +6𝛼)+cos(4𝛼−2𝜋)+cos(𝛼+3𝜋) cos(
5𝜋 2 −6𝛼)+sin(4𝛼+𝜋)+sin(𝛼+3𝜋) A) – 𝑡𝑔𝛼 B) 𝑡𝑔𝛼 C) 𝑐𝑡𝑔𝛼 D) – 𝑐𝑡𝑔𝛼
20. Aniqmas integralni hisoblang: ∫ 3𝑥 2 (𝑥 3 + 1) 2 + 1 𝑑𝑥
A) 𝑎𝑟𝑐𝑡𝑔(3𝑥 2 + 1) + 𝐶
B) 𝑎𝑟𝑐𝑡𝑔(𝑥 3 + 1) + 𝐶
C) 𝑎𝑟𝑐𝑐𝑡𝑔(𝑥 3 + 1) + 𝐶
D) 𝑎𝑟𝑐𝑐𝑡𝑔(𝑥 3 − 1) + 𝐶
21. ABC uchburchakning AE va BF medianalari D nuqtada kesishadi va DFE uchburchakning yuzi 4 ga teng bo’lsa, ABC uchburchakning yuzini toping. A) 27 B) 36 D) 45 D) 48
22. Teng yonli uchburchak perimetri 60 sm. Teng tomonlar o’rtasini tutashtiruvchi kesma 10 sm. Uchburchakka ichki chizilgan aylana radiusini toping. A) 10
B) 10 √3 C) 5 D) 3
23. AB kesma p tekislikni kesib o’tadi.A uchidan tekislikkacha masofa 17ga, B uchidan esa 13 ga teng bo’lsa, AB dan tanlangan va AB ni A uchidan boshlab 3:2 kabi nisbatda bo’luvchi C nuqtadan tekislikgacha bo’lgan masofani toping. A) 5 B) 4 C) 2 D) 1
24. Kesik konus asosining radiuslari 3 va 5 ga teng va unga shar ichki chizilgan. Sharning sirti toping. A) 196𝜋 B) 10𝜋 C) 60𝜋 D) 80 𝜋
GULISTON – 2019 MATEMATIKAFLY MADINABONU O’QUV MARKAZI Telegramdagi manzilimiz: https://telegram.me/matematikafly 25. 𝑥
2 + 𝑦
2 − 4𝑥 + 6𝑦 = 3 tenglama bilan berilgan aylananing eng katta vatarini toping. A) 6 B) 8 C) 10 D) 12
26. 𝑎⃗(2; 𝑥) 𝑣𝑎 𝑏⃗⃗(−5; 𝑦) vektorlar perpendekulyar bo’lsa, 2𝑥𝑦 ning qiymatini hisoblang. A) 5 B) 0 C) 20 D) 10
27. Silindrning o’q kesimi dioganali 13 ga, yasovchisi 12 ga teng bo’lsa, silindr asosi radiusini toping. A) 3 B) 2,5 C) 5 D) 8
28. Soatning soat mili 48 minutda necha gradusga buriladi? A) 48 B) 12 C) 24 D) 96
29. ABC to’g’ri burchakli uchburchakda B burchak to’g’ri. Gipotenuzadan D nuqta, BC katetdan E nuqta shunday tanlaganki, AB=AD ; BD=BE va ∠𝐴𝐶𝐵 = 50° bo’lsa, ∠𝐸𝐷𝐶 ni toping. A) 10° B) 15° C) 20° D) 30°
30. 𝐴𝐵𝐶𝐷𝐴 1 𝐵 1 𝐶 1 𝐷 1 To’g’ri burchakli parallelepiped berilgan.AB=8, BC=2, 𝐵𝐵 1 = 6 𝐴𝐵𝐶𝐷𝐵
1 𝐶 1 ko’pyoqli figuraning to’la sirtini yuzini toping. A) 48 B) 72 C) 96 D) 120
21 – Variant. 1. Aniq integralni hisoblang: ∫ [ 𝑥
+ 1] 𝑑𝑥 4 0 A) 6 B) 4 C) 8 D) 10
2. Agar 𝑡𝑔35° = 𝑛 bo’lsa, 𝑐𝑡𝑔55°−𝑐𝑡𝑔125° 𝑡𝑔35°∙𝑐𝑡𝑔145° ni
A) 2n B) n C) – 2n D) 0
3. Hisoblang: arcsin (sin 6𝜋 7 )
A) 𝜋 7 B) 3𝜋 7 C) 5𝜋 7 D) 6𝜋 7
4. √
1+𝑠𝑖𝑛𝛼 1−𝑠𝑖𝑛𝛼
− √ 1−𝑠𝑖𝑛𝛼
1+𝑠𝑖𝑛𝛼 ni soddalashtiring. Bu yerda ( 𝜋 2 < 𝛼 < 3𝜋 2 )
A) −2𝑡𝑔𝛼 B) – 𝑡𝑔𝛼 C) 0 D) −2𝑐𝑡𝑔𝛼
5. |𝑥
2 + 10𝑥| = 𝑥 2 + 10𝑥 + 18 tenglamaning haqiqiy ildizlarining yig’indisini toping. A) -9 B) -10 C) -1 D) 10
6. Hisoblang: √8 − 2√7 − √7 − 2 A) -3 B) -2 C) -1 D) 0
GULISTON – 2019 MATEMATIKAFLY MADINABONU O’QUV MARKAZI Telegramdagi manzilimiz: https://telegram.me/matematikafly 7. Tenglamani yeching: sin 5𝑥 = sin 3𝑥 A) 𝜋𝑛; 𝜋
+ 𝜋𝑛 8 B) 2𝜋𝑛; 𝜋 8 + 𝜋𝑛 4 C) 𝜋𝑛;
𝜋 8 + 𝜋𝑛 8 D) 𝜋𝑛; 𝜋 8 + 𝜋𝑛 4
8. Temirning 72 foizi qirqib olindi, qolgan qismining og’irligi 56kg. Temirning kesib olingan qismining og’irligini toping. A) 72 B) 144 C) 56 D) 112 9. |
6−3𝑥 1+3𝑥
| > 0 tengsizlikni yeching. A) (−∞; − 1 3 ) ∪ (2; ∞)
B) (−∞; − 1 3 ) ∪ (0; 1) ∪ (2; ∞) C) (−∞; − 1 3
1 3 ; 2) ∪ (2; ∞) D) (−∞; − 1 3
10. 𝑓(𝑥) = { 2𝑏 2 𝑥 2 + 2𝑎𝑥 + 2; 𝑥 ≥ 2 𝑥 2
;
𝑓 ′ (1) = 2; 𝑓 ′ (3) = 4 𝑏𝑜 ′ 𝑙𝑠𝑎, (𝑎 + 𝑏) 3 =?
A) 8 B) 27 C) 64 D) 81 11. Soddalashtiring: ((𝑥 − 3)! + (3 − 𝑥)!) ∙ 𝑥!
A) 0 B) 6 C) 12 D) 𝑥! 12. |𝑥| + |𝑦 − 1| ≤ 4 chegaralagan soha perimetrini toping. A) 16√2 B) 4√2 C) 8√2 D)16
13. Ishchi birinchi kuni ish normasining 1 4
qismini bajardi. Ikkinchi kuni birinchi kunda bajargan ishning 1 6
ish bajardi. Ishchi shu ikki kunda ish normasining qancha qismini bajargan? A) 5
B) 13 24 C) 7 24 D) 1 2 14. Tenglamani yeching: (√2 4
4𝑥−7 = (√2)
− 2𝑥 3 A)
21 8 B) 21 16 C) 21 12 D) 21 13
15. Ko’paytuvchilarga ajrating: (𝑎 + 𝑏) 2 − 𝑏 2
A) (𝑎 + 2𝑏)(𝑎 − 𝑏) B) (𝑎 + 𝑏)(𝑎 − 2𝑏) C) (𝑎 + 2𝑏) ∙ 𝑎 D) (𝑎 + 2𝑏) ∙ 𝑏
16. Agar 𝑦 = ln(5𝑥 + 1) 2 − ln(2𝑥 + 1) 5 +
funksiyaning grafigiga (𝑥 0 ; 𝑦 0 )
nuqtada o’tkazilgan urinma absissalar o’qiga parallel bo’lsa, √𝑥 0 2
0 2 ni toping. A) 3 B) 4 C) 5 D) 6
17. 2
𝑥 > √𝑥 tengsizlikni yeching. A) yechimga ega emas B) {0;1} C) [0; ∞) D) (0; ∞)
18. 𝑦 = √𝑙𝑜𝑔 0,5 (𝑥 − 3)
funksiyaning aniqlanish sohasini toping. A) (3; ∞) B) (3;4) C) (3;4] D) [4; ∞) GULISTON – 2019 MATEMATIKAFLY MADINABONU O’QUV MARKAZI Telegramdagi manzilimiz: https://telegram.me/matematikafly 19. Agar 𝑎 + 𝑏 − 𝑐 = 7; 𝑎𝑏 − 𝑎𝑐 − 𝑏𝑐 = 5 bo’lsa, 𝑎 2 + 𝑏 2 + 𝑐
2 ni hisoblang. A) 39 B) 29 C) 49 D) 44
20. 𝑦 = arcsin 3 𝑥 funksiyaning aniqlanish sohasini toping. A) [0;1) B) [-1;1] C) (−∞; 1] D) (0;1]
21. Yuzi 16√3 ga teng bo’lgan teng yonli uchburchakning asosidagi burchagi 30° ga teng bo’lsa, asosiga tushirilgan balandlikni toping. A) √3 B) 1,5 C) 4 D) 3
22. ABC uchburchakda B burchak to’g’ri. D nuqta gipotenuzani A uchidan hisoblaganda 1 va 11 ga teng bo’lgan bo’laklarga ajratadi. BD ning eng katta qiymatini toping. A) 10 B) 9 C) 8 D) 6
23. ABCD parallelogrammda B va C burchak bisektrissalari AD tomonni E va F nuqtaklarda kesadi va ular parallelogram ichida K nuqtada o’zaro kesishadi. AB va EF lar mos ravishda 10 va 2 ga teng bo’lsa, 𝐸𝐾 𝐾𝐵 ni toping. A)
1 6 B) 2 13
C) 1 8 D) 1 9
24. To’g’ri burchakli trapetsiyaning yon tomonlari 12 va 24 ga teng.Agar trapetsiyaning kichik diogonali katta yon tomoniga teng bo’lsa, trapetsiyaning o’rta chizig’ini toping. A) 18 B) 18√3 C) 12√3 D) 6√3
25. To’g’ri parallelepiped bir uchidan chiqqan tomonlari uchun 1 𝑎 + 1 𝑏 + 1 𝑐 = 3 5 tenglik o’rinli bo’lib, to’la sirti 144 ga teng. Parallelepipedning hajmini toping. A) 150 B) 180 C) 90 D) 120
26. To’g’ri burchakli parallelepipedning qirralari 1:4:2 kabi nisbatda. Uning to’la sirti 548 𝑑𝑚 2 bo’lsa, hajmini toping. A) 1000 B) 500 C) 512 D) 1024
27. Soatning soat mili 16° ga burilsa, minut mili necha gradusga buriladi? A) 192° B) 228° C) 186° D) 216°
28. Muntazam tetraedrning qirrasi 3 ga teng. Uning asosiga tashqi chizilgan aylana markazidan yon qirrasigacha bo’lgan masofani toping. A) 3 B) √3 C) √2 D) 2
GULISTON – 2019 MATEMATIKAFLY MADINABONU O’QUV MARKAZI Telegramdagi manzilimiz: https://telegram.me/matematikafly 29. To’g’ri burchakli uchburchakning o’tkir burchagi 30° ga teng. Shu burchakka yopishgan katet 4 ga teng bo’lsa, kichik medianani toping. A)
2√21 3 B) 2√39 3
С) 4√3
3 D) 2 3
30. ABC uchburchakning AE va BF medianalari P nuqtada kesishadi. Agar EFP uchburchak yuzi 6 ga teng bo’lsa, ABC uchburchakning yuzini hisoblang. A) 60 B) 75 C) 72 D) 45 Download 1.9 Mb. Do'stlaringiz bilan baham: 
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