Uy » Online olimpiada » Matematika olimpiada » 7-sinflar Matematika olimpiada №2 Matematika olimpiada 7-sinflar Matematika olimpiada №2 InfoMaster Dekabr 12, 2022 199 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. Ifodani soddalashtiring: 15x⁶y¹⁰ 15x⁵y¹⁰ 15x⁷y¹⁰ 15x⁵y⁶ 2 / 25 2. ABC uchburchakning AD medianasi BC tomondan keyin DE= AD bo`lgan kesmaga davom ettirilib, E nuqta B nuqta bilan tutashtirildi.Agar ∠ACD=450, ∠ABD=350 bo`lsa, ∠ABE ni toping. 10° 80° 75° 70° 3 / 25 3. Ikkita parallel to`g`ri chiziqlarni to`g`ri chiziq bilan kesishishidan hosil bo`lgan mos burchaklarning yig`indisi 2100 ga teng.Bu burchaklarni toping. 110°; 100° 115°; 95° 80°; 130° 105°; 105° 4 / 25 4. Tenglamaning ildizi x0 bo’lsa, 18:x0 ifodaning son qiymatini toping. -7 6 78/7 7 5 / 25 5. 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. 48 sm 30 sm 12 sm 24 sm 6 / 25 6. B A C D 7 / 25 7. D A C B 8 / 25 8. D A B C 9 / 25 9. C D A B 10 / 25 10. A C B D 11 / 25 11. C B D A 12 / 25 12. D A B C 13 / 25 13. D B A C 14 / 25 14. C A D B 15 / 25 15. D C B A 16 / 25 16. C A D B 17 / 25 17. A D C B 18 / 25 18. B A D C 19 / 25 19. D C B A 20 / 25 20. B C A D 21 / 25 21. A D B C 22 / 25 22. B D C A 23 / 25 23. D A C B 24 / 25 24. A D C B 25 / 25 25. B A D C 0% Testni qayta ishga tushiring Author: InfoMaster Foydali bo'lsa mamnunmiz
