Uy » Online olimpiada » Matematika olimpiada » 9-sinf Matematika olimpiada №3.1 Matematika olimpiadaViloyat 2021-2022 o'quv yili 9-sinf Matematika olimpiada №3.1 InfoMaster Avgust 19, 2024 6 Ko'rishlar 2 izohlar SaqlashSaqlanganOlib tashlandi 0 0 12345678910111213141516171819202122232425 Vaqtingiz tugadi! 9-sinf Matematika olimpiada №3.1 2021-2022 o'quv yil viloyat bosqichida tushgan savollar. 1 / 25 1. To‘g‘ri burchakli uchburchakka ichki chizilgan aylana urinish nuqtasida gipotenuzani 5 va 12 ga teng kesmalarga ajratadi. Uchburchak yuzini toping A) 35 B) 48 C) 60 D) 65 2 / 25 2. tengsizlikni yeching. A) (-∞;-1/2)∪(-1/2;∞) B) (-∞;3)∪(3;∞) C) xℇR D) (-∞;-1/2)∪(-1/2;3)∪(3;∞) 3 / 25 3. Agar ning qiymatini toping. A) -3 B) 2 C) -1 D) 3 4 / 25 4. A) -36 B) -1 C) -6 D) -216 5 / 25 5. Tenglama ildizlari yig‘indisini toping. (? − |?|)² + ? + |?| = 100 . A) 55 B) 50 C) 45 D) 40 6 / 25 6. Kenguru oldinga 1 metrga yoki 3 metrga sakraydi. U 10 metr masofani bosib o‘tishni xohlaydi. U bu ishni necha usulda amalga oshira oladi? A) 30 B) 36 C) 28 D) 55 7 / 25 7. ABC uchburchak berilgan ∠B = 90°. AC va BC tomonlarida mos ravishda E va D nuqtalar shunday olinganki, bunda AE = EC, ∠ADB = ∠EDC. U holda CD: BD ni toping. A) 5 B) 4 C) 2 D) 3 8 / 25 8. 4 ga bo‘lganda 3, 3 ga bo‘lganda esa 2 qoldiq hosil bo‘ladigan barcha ikki xonali sonlar yig‘indisini toping. A) 384 B) 424 C) 420 D) 376 9 / 25 9. tengsizlikning butun yechimlari yig‘indisini toping. A) 21 B) 20 C) 12 D) 18 10 / 25 10. f(x) kvadrat funksiyaga nisbatan ma’lumki, f(0) + f(1) = 0, f(2) + f(3) = 0. f(x) = 2022 tenglamaning ildizlari yig‘indisi nimaga teng? (bunda, f(x) = 2022 tenglama 2 ta turli yechimga ega). A) 5 B) 3 C) 4 D) 6 11 / 25 11. ?(?) = 6/(?−1) va ?(?) = 2? − 1. ?(?(2)) + ?(?(3)) + ?(?(2)) + ?(?(3)) ni toping. A) 18.2 B) 12.6 C) 11.4 D) 9.8 12 / 25 12. Tenglama butun sonlarda nechta yechimga ega? (? − 2021)² − ?² + 2? = 14 A) 4 B) 3 C) 5 D) 6 13 / 25 13. Tenglamaning ildizlari yig‘indisini toping: [?] + {2?} = 2,5 (bu yerda, [?]⎯ ? sonining butun qismi, {?}⎯ ? sonining kasr qismi, ya’ni {?} = ? − [?]) A) 5 B) 9 C) 6 D) 3 14 / 25 14. Teng yonli trapetsiyaning asoslari 6 va 10 ga, diagonali 10 ga teng. Trapetsiya yuzini toping. A) 56 B) 48 C) 36 D) 64 15 / 25 15. Hisoblang: bunda, A) -64 B) -144 C) -100 D) -49 16 / 25 16. Tenglamani yeching: (71² + 81²)(7² + 8²) = 1135² + ?² A) 151 B) 169 C) 159 D) 161 17 / 25 17. Yig‘indini toping: A) 2023 B) 2020 C) 2021 D) 2022 18 / 25 18. 1 dan 100 gacha bo‘lgan natural sonlar orasidagi ? sonlar shundayki, ? ning natural bo‘luvchilari ko‘paytmasi(1 va ? ham inobatga olinganda) ?³ ga teng. Shunday ? natural sonlar nechta? A) 16 B) 10 C) 18 D) 12 19 / 25 19. Dastlab tarvuzning 99% i suv edi, quritilgandan so‘ng esa 98% suv bo‘ldi. Tarvuzning massasi necha marta kamaydi? A) 2 B) 1.5 C) 2.5 D) 4 20 / 25 20. Raqamlari joylashuvi kamayish tartibida bo‘ladigan nechta uch xonali natural son mavjud? (masalan, 983, 751,210) A) 130 B) 125 C) 120 D) 115 21 / 25 21. Aylanaga tashqi chizilgan ABCD teng yonli trapetsiyaning yuzi √3 ga teng. Agar ВС : AD = 1 : 3 bo‘lsa, trapetsiyaning АВ yon tomonini toping. A) √3 B) √2 C) √6 D) 2 22 / 25 22. Uchburchakning to‘g‘ri burchagidan chiquvchi bissektrisa gipotenizani 15 va 20 ga teng qismlarga ajratadi. Uchburchak yuzini toping. A) 264 B) 268 C) 294 D) 288 23 / 25 23. to‘g‘ri chiziqlar orasidagi burchakni toping. A) 45° B) 5° C) 15° D) 30° 24 / 25 24. Tenglamalar sistemasi nechta yechimga ega? A) 10 B) 6 C) 12 D) 8 25 / 25 25. Raqamlari yig‘indisidan 12 marta katta bo‘lgan uch xonali sonlarni toping. A) 150 B) 108 C) 111 D) 109 0% Testni qayta ishga tushiring Tomonidan Wordpress Quiz plugin Author: InfoMaster Foydali bo'lsa mamnunmiz