Uy » Online olimpiada » Matematika olimpiada » 10-sinf Matematika olimpiada №4 Matematika olimpiadaTuman 2022-2023 o'quv yili 10-sinf Matematika olimpiada №4 InfoMaster Avgust 19, 2024 13 Ko'rishlar 200 izohlar SaqlashSaqlanganOlib tashlandi 0 0 123456789101112131415161718192021222324252627282930 Vaqtingiz tugadi! 10-sinf Matematika olimpiada №4 2022-yil 12-oktabr: 2022-2023 o'quv yili tuman bosqichida tushgan savollar! 1 / 30 1. Hisoblang: A) 1 B) 3 C) 2 D) 4 2 / 30 2. trigonometrik tenglamani yeching. A) π/6+πk; k∈Z B) π/12+πk/2; k∈Z C) π/12+πk; k∈Z D) π/12+2πk; k∈Z 3 / 30 3. Agar x²(a²+b²+9)+2(a+b+3)x+3=0 tenglama haqiqiy yechimga ega bo`lsa, a+b ni toping. A) 4 B) 6 C) 2 D) 3 4 / 30 4. ABC uchburchakning AC tomonida D nuqta olingan, bunda ∠ABC = ∠BDC. Agar AD = 10, CD = 8 bo‘lsa, BC ni toping. A) 15 B) 10 C) 9 D) 12 5 / 30 5. ?(?) = ?5 − 7?4 + 3?3 − ? + 2 ko‘phadni ?2 + ? ga bo‘lgandagi qoldiqni aniqlang. A) 10? + 2 B) 8? + 2 C) 6? + 2 D) 4? + 2 6 / 30 6. tenglama bilan berilgan aylananing markazi koordinata tekisligining qaysi choragida yotadi? A) I B) IV C) II D) III 7 / 30 7. ?³?³ = 1024 tenglikni qanoatlantiruvchi nechta (?; b) butun sonlar juftligi mavjud? A) 2 B) 3 C) 4 D) 5 8 / 30 8. Agar bo'lsa, ni toping. A) 4.5 B) 5 C) 4 D) 3.5 9 / 30 9. Agar ni toping. A) 0.8 B) 8 C) 4 D) 0.16 10 / 30 10. Supermarketda reklama aksiyasi o‘tkazilmoqda: 3 ta shokolad sotib olgan xaridorga 4-shokolad sovg‘a tariqasida qo‘shib beriladi. Bitta shokolad narxi 28000 so‘m. Xaridor 300 000 so‘m evaziga eng ko‘pi bilan nechta shokolad xarid qila oladi? A) 11 B) 12 C) 13 D) 14 11 / 30 11. 4 ga karrali va o‘nli yozuvida 4, 5, 6, 8 raqamlari bo‘lmagan to‘rt xonali sonlar nechta? A) 150 B) 120 C) 210 D) 180 12 / 30 12. ? parametrning qanday musbat qiymatlarida ?² − (? + 3)? + 3? + 11 = 0 tenglamaning barcha ildizlari butun sonlardan iborat bo‘ladi? A) 15 B) 3 C) 10 D) 16 13 / 30 13. Tenglamani yeching: A) 8/17 B) -1 C) 0 D) 15/17 14 / 30 14. y = 4x² − 3x − 5 parabolaga x(0; 0) nuqtaga nisbatan simmetrik bo‘lgan parabola tenglamasini ko‘rsating. A) y=-4x² − 3x+ 5 B) y= 4x² − 3x + 5 C) y= -4x² − 3x - 5 D) y= 4x² + 3x - 5 15 / 30 15. Qavariq o‘n ikki burchakning diagonallar sonini toping. A) 40 B) 48 C) 54 D) 36 16 / 30 16. Soddalashtiring: bunda, |?| < 3 A) 9-2? B) 9 C) 1-2? D) 2? − 9 17 / 30 17. Uchinchi raqami to‘rtinchi raqamidan 1 ga kichik bo‘lgan to‘rt xonali sonlar sonini toping A) 720 B) 810 C) 990 D) 900 18 / 30 18. ?1 va ?2 sonlari ?² − 7? − 1 = 0 tenglama ildizlari bo‘lsa, ?²1 + ?²2 ni toping. A) 4 B) 49 C) 51 D) 53 19 / 30 19. ∠BAD= ∠ABD= 20∘, ∠DBC= 110∘, ∠BCD= 30∘ va AB= 2, CD=? A) 1 B) 3 C) 4 D) 2 20 / 30 20. tenglama nechta haqiqiy yechimga ega? A) 3 B) 2 C) 1 D) 4 21 / 30 21. ABCD qavariq to‘rtburchakda ∠BAD= ∠CDA= 60∘, ∠BDA= ∠CAB, AB= 2 va CD= 9 bo‘lsa, AD ni toping. A) 11 B) 9 C) 6 D) 12 22 / 30 22. k parametrning qanday musbat qiymatida 20x²+ ?x + 5 = 0 tenglama bitta ildizga ega? A) 10 B) 40 C) 20 D) 5 23 / 30 23. y = x²− 2 parabolaga y = 2 to‘g‘ri chiziqqa nisbatan simmetrik bo‘lgan parabola tenglamasini tuzing. A) y = x² − 8x + 14 B) y = x² + 8x + 2 C) y = x² − 8x − 2 D) y = x² + 8x − 14 24 / 30 24. f(x) = ax² + b funksiya grafigi A(-1;5) va B(2;-1) nuqtalardan o‘tadi. f(5 − f(1)) ning qiymatini toping. A) 2 B) 5 C) 7 D) 6 25 / 30 25. Raqamlari yig‘indisi 3 ga teng bo‘lgan o‘n xonali natural sonlar nechta? A) 55 B) 53 C) 56 D) 54 26 / 30 26. ?1 va ?2 sonlari ?² − 7? − 1 = 0 tenglama ildizlari bo‘lsa, ?²1 + ?²2 ni toping. A) 4 B) 53 C) 51 D) 49 27 / 30 27. 1,2,3,4…..,2021,2022 sonlar orasidan nechtasi 3 ga ham, 7 ga ham bo‘linmaydi? A) 1128 B) 1098 C) 1084 D) 1156 28 / 30 28. Ikki son o’rtasidagi ∆ operatsiyasiga ko‘ra quyidagi natijalar olindi: 7 ∆ 1 operatsiya natijasini toping. A) 32 B) 592 C) 86 D) 125 29 / 30 29. Tenglamani yeching: A) 4 B) 3 C) 5 D) 2 30 / 30 30. Chizmada AE = 2, BE= 6, DE= 3. Aylana diametrini toping. A) √65 B) √25 C) 2√45 D) 36 0% Testni qayta ishga tushiring Tomonidan Wordpress Quiz plugin Author: InfoMaster Foydali bo'lsa mamnunmiz