Uy » Online olimpiada » Matematika olimpiada » 7-sinflar Matematika olimpiada №2 Matematika olimpiada 7-sinflar Matematika olimpiada №2 InfoMaster Dekabr 12, 2022 267 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 0 0 12345678910111213141516171819202122232425 Vaqtingiz tugadi! 7-sinflar Matematika olimpiada №2 07.12.2022 yil oo.uzedu.uz Online olimpiada savollari! 1 / 25 1. Uchburchakning ikki bissektrissasining kesishishidan hosil bo`lgan burchak 1280 ga teng. Uchburchakning uchinchi burchagini toping. 64 66 67 65 2 / 25 2. Ifodani ko`paytuvchilarga ajrating: 9b²-(a-3b)² (6b-a)a 18b²-a²+6ab (6b-a)(6b+a) a² 3 / 25 3. Umumiy AB asosga ega bo`lgan ACB va ADB uchburchaklar berilgan. CD va AB lar O nuqtada kesishadi. Agar ∠DAB= ∠CBA, ∠CAB= ∠DBA, DB=24 sm bo`lsa, CA ni toping. 24 sm 12 sm 48 sm 30 sm 4 / 25 4. Tenglamani yeching: 8x+5=119+(7-3x) 1,1 1,2 11 12 5 / 25 5. Hisoblang: III IV II I 6 / 25 6. C D B A 7 / 25 7. C A B D 8 / 25 8. C A D B 9 / 25 9. B A C D 10 / 25 10. A B C D 11 / 25 11. D B C A 12 / 25 12. C D A B 13 / 25 13. D C A B 14 / 25 14. A B C D 15 / 25 15. B D C A 16 / 25 16. A C D B 17 / 25 17. D C A B 18 / 25 18. A C B D 19 / 25 19. C B A D 20 / 25 20. D B A C 21 / 25 21. B C D A 22 / 25 22. A B C D 23 / 25 23. B A D C 24 / 25 24. A C B D 25 / 25 25. C D A B 0% Testni qayta ishga tushiring Author: InfoMaster Foydali bo'lsa mamnunmiz
