bellashuv_uz_____9_sinf_matematika

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bellashuv.uz – barcha fanlardan testlar banki kamolov mansurjon muhammadovich tel: +998912511112 e-mail: bellashuv@umail.uz +998934601119 matematika fanidan olimpiada savollari. 9-sinf 1. 52001*19971998*2000 +- ni hisoblang. a) 2 b) 3 c) 2 2 d) 6 2. tenglamani yeching: 8* (3 2 +1)*(34+1)*(3 8 +1) …..(3128 +1)*x=3 256 -1 a) 8 1 b) 1 c) 2 1 d) 2563 1 3. 12 143996335153 =+++++ xxxxxx tenglamani yeching. a) 16 b) 18 c) 24 d) 26 4. tenglamani yeching. 1998 x 2 -2000x+2=0 a) 1; 1998 2 b) -1; 1998 2 c) 1; - 1998 2 d) -1; 1998 2 5. ildizlaridan biri 3+ 2 2 ga teng bo’lgan ratsional koeffisiyentli kvadrat tenglama tuzing. 6. tenglama haqiqiy ildizlarining yig’indisini toping: x 6 - 65x 3 = - 64 a) 5 b) 65 c) 64 d) 1 7. a ning qanday qiymatlarida ax-3 = a+2x tenglamaning yechimi bo’lmaydi? a) a = 0 b) a = …

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d) (- 3 2 ; 0) 16) teng yonli uchburchakning asosidagi burchak uning uchidagi burchakning 75%iga teng. uchburchakning uchidagi burchagini toping. 17) 2x+3y-6=0 to’g’ri chiziq va koordinata o’qlari bilan chegaralangan uchburchakning yuzini toping. 18) kvadratning perimetri 20% ga uzaytirilsa, uning yuzi necha foizga ko’payadi? a) 40 b) 20 c) 44 d) 120 19) teng yonli trapetsiyaning asoslari 15 va 25 ga, balandligi esa 15 ga teng. trapetsiyaning diagonalini toping. a) 25 b) 28 c) 30 d) 35 20) ushbu n n312 - ifodani n ning nechta natural qiymatida natural son bo’ladi. 21) agar 3a-b=7, b-c=5 va 3c-a=2 bo’lsa, a+c ni toping. 22) k ning qanday qiymatlarida k(x+1)=5 tenglamaning ildizi musbat bo’ladi? 23) ushbu x5-16x > 0 tengsizlikning eng kichik butun musbat va eng katta butun manfiy yechimlari ko’paytmasini toping. a) – 6 b) -5 c) -4 d) -3 24) agar 3 ≤ x ≤ 6 va 15≤ y ≤ 60 …

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tma nechta detaldan iborat? mailto:bellashuv@umail.uz bellashuv.uz – barcha fanlardan testlar banki kamolov mansurjon muhammadovich tel: +998912511112 e-mail: bellashuv@umail.uz +998934601119 javoblar 1. c 2. b 3. d 4. a 5. x2-6x+17=0 6. a 7. b 8. c 9. b 10. d 11. 76 0 12. a 13. d 14. 24 15. b 16. 72 0 17. 3 18. c 19. a 20. 3 21. 7 22. (0;5) 23. d 24. b 25. c mailto:bellashuv@umail.uz bellashuv.uz – barcha fanlardan testlar banki kamolov mansurjon muhammadovich tel: +998912511112 e-mail: bellashuv@umail.uz +998934601119 voprosi olimpiadi po matematike (9klass) 1. vichislite: 52001*19971998*2000 +- a)2 v)3 s)2 2 d) 6 2. reshite uravnenie: 8*(32+1)*(34+1)*(38+1) ….(3128+1)*x=3256-1 a) 8 1 b) 1 c) 2 1 d) 2563 1 3. reshite uravnenie: 12 143996335153 =+++++ xxxxxx a)16 v)18 s)24 d)26 4. reshite uravnenie: 1998x2-2000x+2=0 a) 1; 1998 2 b) -1; 1998 2 c) 1; - 1998 2 d) -1; 1998 2 …

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no postroit treugolnik? a ) (0 ; 1) b) ø c) (- 2 1 ; 0) d) (- 3 2 ; 0) mailto:bellashuv@umail.uz bellashuv.uz – barcha fanlardan testlar banki kamolov mansurjon muhammadovich tel: +998912511112 e-mail: bellashuv@umail.uz +998934601119 16.v ravnobedrennom treugolnike ugol pri osnovanii raven 75% ugla pri vershine. naydite ugol pri vershine 17. naydite ploshad treugolnika obrazovannogo pryamoy 2x+3x-6=0 i koordinatnimi osyami. 18. na skolko uvelichitsya ploshad kvadrata, esli ego perimetr uvelichit na 20%? a)40 v)20 s)44 d)120 19. osnovaniya ravnobedrennoy trapetsii ravni 15 i 25,a visota 15. naydite diagonal. a)25 v)28 s)30 d)35 20.pri skolki naturalnix znacheniyax n virajenie n n312 - budet naturalnim? 21. esli 3a-b=7, b-s=5 i 3s-a=2, to chemu ravno a+s. 22. pri kakom znachenii k korni uravneniya k (x+1)=5 budut polojitelnimi? 23. naydite proizvedenie samogo naimenshego polojitelnogo i samogo naibolshego otritsatelnogo tselogo chisla neravenstva x5-16x > 0 a)-6 v)-5 s)-4 d)-3 24. naydite x y …

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a dva uchenika vmeste - na 1 chas bistree. iz kakogo kolichestva detaley sostoit zakaz? mailto:bellashuv@umail.uz

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bellashuv.uz – barcha fanlardan testlar banki kamolov mansurjon muhammadovich tel: +998912511112 e-mail: bellashuv@umail.uz +998934601119 matematika fanidan olimpiada savollari. 9-sinf 1. 52001*19971998*2000 +- ni hisoblang. a) 2 b) 3 c) 2 2 d) 6 2. tenglamani yeching: 8* (3 2 +1)*(34+1)*(3 8 +1) …..(3128 +1)*x=3 256 -1 a) 8 1 b) 1 c) 2 1 d) 2563 1 3. 12 143996335153 =+++++ xxxxxx tenglamani yeching. a) 16 b) 18 c) 24 d) 26 4. tenglamani yeching. 1998 x 2 -2000x+2=0 a) 1; 1998 2 b) -1; 1998 2 c) 1; - 1998 2 d) -1; 1998 2 5. ildizlaridan biri 3+ 2 2 ga teng bo’lgan ratsional koeffisiyentli kvadrat tenglama tuzing. 6. tenglama haqiqiy ildizlarining yig’indisini toping: x 6 - 65x …

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