1-kurs test savollari
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1-kurs test savollari 1. Sonlarni kamayish tartibida joylashtiring. m=0,55(57) , n=0,5(557), p=0,555(7) A p>m>n B p>n>m C m>n>p D n>p>m 2 Quydagi oddiy kasrlarning qaysilarini chekli o’nli kasrga keltirib bo’lmaydi? 1. 7/40 2. 3/28 3. 13/35 4. 18/250 A) 1,2 B) 2,3 C) 3,4 D) 4,1 3. Agar 49z+49-z=7 bo’lsa , 7z + 7-z ni hisoblang. A) 4 B) C)3 D)-3 4. -a2 -b2 ni ab va a+b orqali ifodalang. A) (a+b)2 -2ab B)- (a+b)2 +2ab C) (a+b)2 -ab D) (a-b)2 +ab 5. Ushbu b7x-bx7 ifodani ko’pi bilan nechta ko’paytuvchilarga ajratish mumkin. A) 3 B)5 C) 6 D) 7 6. 76-27 soni quydagilarning qaysi biriga qoldiqsiz bo’linadi? A) 51B) 49 C) 23D) 45 7. Ushbu (2n-3)/(n+1) ifoda n ning nechta natural qiymatida butun son bo’ladi.? A) 3 B) 2C) 4 D) 1 8. Hisoblang. (1-1/32)(1-1/42)…(1-1/1012) A)157/303 B)142/303 C) 64/101 D) 68/101 9. Ifodani soddalashtiring. 19/( -1) -2 +3 A)1 B)2 C) 2 +4 D) 4 10. Tenglamani yeching. 2,8x-3(2x-1)=2,8-3,19x A) -20 B)20 C)10 D)-10 11. Agar (3x-1)(x-2)= 0 bo’lsa, 3x-1 qanday qiymatlarni qabul qilish mumkin? A) faqat 1/3 B) 0 yoki 1/3 C) 0 yoki 5D) faqat 5 12. (x+1)(x+2)(x+4)(x+5)= 40 (x ) tenglamaning ildizlar yig’indisini toping. A)-6 B) 0 C) 6 D) 7 13 (x,y) sonlar jufti sistemaning yechimi bo’lsa , x+y ni toping. A)3 B)-3 C)1 D) 0 14 Tengsizlikni qanoatlantiruvchi butun sonlar nechta? > x-1 A)5 B)4 C)3 D)1 15. Tengsizlik nechta butun yechimga ega? A)12 B)10 C) 11D) 9 16. O’ziga qo’shni burchakning 44%iga teng bo’lgan burchakni toping. A) 550B) 800C)600 D) 700 17. Uzunligi 4,2 kesmani 3:4 nisbatda bo’ling. A)1,8 va 2,4 B)1,2va 3 C) 2va 2,2D)1va 3,1 18. a ning qanday qiymatlarida uzunliklari mos ravishda 1+2a, 1-a va 2 ga teng bo’lgan kesmalardan uchburchak yasash mumkin? A) (0,1/3) B) (1, 2/3) C) (-2/3, 0) D)(-1/2, 1) A) B) C) D) 19. Teng yonli uchburchakning perimetri 10, yon tomoni asosidan 12 marta uzun. Uchburchak asosi qancha? A) 0,8 B) 0,7 C) 0,5 D) 2 20. ABC teng yonli uchburchakda AB=BC . AB-AC =3dm, perimetri 18dm. AB+AC necha dm ? A)11 B)12 C) 13 D) 10 21. ABC uchburchakning DE o’rta chizig’I o’tkazilgan. Agar A) 3 B) C)3 D) 2 22. ABC uchburchakda AB=2, BC=3va AC=4 bo’lsa, C burchak sinusini toping. A) B) C) 1/2 D) 1/4 23. Uchburchakning a, b va c tomonlari orasida a2= b2+c2+ bc tenglikni qanoatlantiradi. a tomon qarshisidagi burchakni toping. A)150 B)1500 C)1250 D)1200 24 Tomonlari 10, 6 va 8 bo’lgan uchburchakning katta tomoniga tushirilgan medianasini toping. A)5 B)4 C)7 D)2 25 Uchburchakning burchaklari 1:2:3 kabi nisbatda. Uchburchak katta tomonining kichik tomoniga nisbatini aniqlang. A)1 B)2 C)3 D)4 Download 107 Kb. Do'stlaringiz bilan baham: |
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