12345678910111213141516171819202122232425262728293031323334353637383940 9-sinf matematika fanidan online test 9-sinf o'quvchilari uchun 1-bosqich fan olimpiadasiga tayyorlanish uchun mo'ljallangan online test. Test savollar soni: 40 ta Bajarish uchun ajratilgan vaqt: 90 daqiqa Sizga omad yor bo'lsin! Barcha ma'lumotlarni to'g'ri kiriting. . Rombning diagonallari 6 va 8 ga teng bo‘lsa, uning tomonini toping. 5 6 \[3\sqrt 2 \] \[7\sqrt 2 \] . Parallellogrammning 5 ga teng bo‘lgan diagonali uning 12 ga teng bo‘lgan tomoniga perpendikulyar. Parallelogrammning perimetrini toping. 48 50 34 44 \(\begin{array}{l}f(x) = ax + b\\g(x) = cx + d\end{array}\) Agar \(\frac{b}{d} = 5\)va \(f\left( {g\left( x \right)} \right) = g\left( {f\left( x \right)} \right)\)yniyat bo’lsa, \(\frac{{c - 1}}{{a - 1}}\)i toping. \(\frac{1}{5}\) aniqlan-magan 5 0 . Asoslari 18 va 12 ga teng bo‘lgan teng yonli trapetsiyaning diagonallari o‘zaro perpendikulyar. Trapetsiyaning yuzini toping. 125 400 150 225 . Tenglamani yeching: \[\left| {x + 6} \right| = \left| {x + 10} \right|\] -6 6 4 -8 Ifodaning oxirgi raqamini aniqlang: \({3^{279}} \cdot {7^{298}} - {3^{178}} \cdot {7^{197}}\) 6 1 0 3 Tenglamaning ildizlar yig’indisini toping: \((x - 1) \cdot (x - 2) \cdot (x - 3) \cdot ... \cdot (x - 99) \cdot (x - 100) = 0\) 5000 3880 5050 2500 Motorli qayiq bir to’xtash joyidan ikkinchisigacha 3 soatda suzib boradi, sol esa shu masofani 12 soatda suzib o’tadi. Shu masofani motorli qayiq oqimga qarshi necha soatda suzib o’tadi ? 8 6 15 9 Funksiyaning eng kichik qiymatini toping: \(f(x) = 2{x^6} - 7{x^3} + 9\) \(4\frac{1}{2}\) \(2\frac{7}{8}\) \( - 3\frac{1}{4}\) \(3\frac{1}{4}\) 1 dan 732 gacha bo’lgan natural sonlar ko’paytmasi nechta no’l bilan tugaydi? 124 181 146 179 Tarkibida 30% tuz bo’lgan 16 kg eritmani tarkibida 50% tuz bo’lgan eritma bilan aralashtirildi. Hosil bo’lgan eritmaning tarkibida 42% tuz bo’lsa, ikkinchi eritmadan necha kg olingan? 24 30 22 50 \[\frac{x}{2} = \frac{y}{3} = \frac{z}{5}\] bo‘lsa, \[\frac{{xyz}}{{{x^3} + {y^3} + {z^3}}}\] ifodaning qiymatini toping. \[1\frac{{13}}{{16}}\] \[\frac{3}{{16}}\] \[1\frac{1}{8}\] \[\frac{2}{3}\] Natural sonlar to’plamini shunday guruxlarga ajratildiki, bunda har bir guruh natural sonning kvadrati bilan tugaydi {1}, {2,3,4}, {5,6,7,8,9}, .... 17- guruhga kiruvchi sonlar yig’indisini toping. 8008 9009 289 9800 To‘g‘ri burchakli uchburchakka ichki chizilgan aylana urinish nuqtasida gipotenuzani 5 va 12 ga teng kesmalarga ajratadi. Uchburchak yuzini toping. 65 35 60 48 . Tarkibida 85% suv bo‘lgan 0,5 t sellyuloza qorishmasida 75% suv bo‘lgan qorishma olish uchun necha kg suvni bug‘lantirish kerak? 200 400 100 300 Agar \[k > 0\] va \[b = 0\] bo‘lsa, u holda \[y = kx + b\] to‘g‘ri chiziq grafigi qaysi choraklardan o‘tadi? II, IV I, II, III I, III I, II \(f(x) = \frac{{3{x^2} - 13x + 16}}{2}\) va \(\begin{array}{l}{f^1}(x) = f(x)\\{f^2}(x) = f(f(x))\\{f^3}(x) = f(f(f(x)))\end{array}\) bo’lsa, \({f^{100}}(1)\) ni hisoblang. 3 \({3^{100}}\) \({2^{100}}\) \({3^{99}}\) Agar ikki xonali sonning o’ng tomoniga 6 raqami yozib qo’yilsa, berilgan sonning yarmi bilan 500 ning yig’indisiga teng son hosil bo’ladi. Bu qanday ikki xonali son? 44 46 52 48 \[P\left( x \right)\] ko‘phadni \[x - a\] ga bo‘lgandagi qoldiqni toping. 0 \[P\left( a \right)\] \[P\left( {x - a} \right)\] \[P\left( x \right)\] Funksiyaning aniqlanish sohasiga nechta butun son tegishli bo’ladi? \(f(x) = \frac{{\sqrt {x - 4} \cdot \sqrt[3]{{x + 5}} \cdot \sqrt[4]{{36 - {x^2}}}}}{{\sqrt[5]{{{x^2} - 11x + 30}}}}\) 1 3 butun sonlar yo’q 2 Agar \[\left( {3 - a} \right)\left( {3 - b} \right)\left( {3 - c} \right) = \left( {3 + a} \right)\left( {3 + b} \right)\left( {3 + c} \right)\] bo‘lsa, \[{\left( {ab} \right)^{ - 1}} + {\left( {bc} \right)^{ - 1}} + {\left( {ac} \right)^{ - 1}}\] ni hisoblang. (Bunda \[abc \ne 0\]). \[ - \frac{1}{3}\] \[\frac{1}{9}\] \[\frac{1}{{27}}\] \[ - \frac{1}{9}\] Ifodaning eng kichik qiymatini toping: \(f(x,y) = {x^2} - 6x + {y^2} - 8y + 36\) 11 24 -10 f(x) funksiya aniqlanish sohasiga tegishli ixtiyoriy x uchun \(\frac{{f( - x) \cdot f(x)}}{{{f^2}(x)}} = - 1\) bo’ladi. \(f(5) = 13\) ekani ma’lum. i hisoblang. \( - 13\) \(13\) \(5\) \(65\) \[\left\{ \begin{array}{l}\frac{{2x + y + \frac{z}{2}}}{z} = 3\\\frac{{x + \frac{{3y}}{4} + \frac{z}{2}}}{y} = 3\end{array} \right.\] sistemadan \[\frac{z}{y}\] ni toping. \[\frac{7}{{11}}\] \[\frac{7}{3}\] \[\frac{{11}}{7}\] \[\frac{3}{7}\] . Ifodaning eng kichik qiymatini toping: \[{p^2} - 16pq + 64{q^2} - 4\] 12 -4 -12 4 \[2010\frac{{2009}}{{2010}} \cdot 2011\frac{{2009}}{{2010}} - 2009\frac{{2009}}{{2010}} \cdot 2012\frac{{2009}}{{2010}}\] ni hisoblang. \[ - 2\frac{{2009}}{{2010}}\] \[2\frac{{2009}}{{2010}}\] 3 2 Hisoblang: \(\frac{{1\frac{2}{3} \cdot 0,0132 \cdot \frac{3}{5} + 2\frac{1}{2} \cdot 0,0148 \cdot \frac{3}{7}}}{{0,4 \cdot 0,00993 + 0,00007}}\) 700 0,7 70 7 Hovuzga uchta quvur o‘tkazilgan. Birinchisi hovuzni 12 soatda, ikkinchisi 8 soatda to‘ldiradi. Uchinchisi hovuzni 1 sutkada bo‘shatadi. Agar uchala quvur birgalikda ochib qo‘yilsa, bo‘sh hovuzning yarmi qancha vaqt(soat)da to‘ladi? 3 2 2,5 1,5 . Yuzi 96 sm2, balandliklari 6 sm va 8 sm bo‘lgan parallelogrammning perimetrini toping. 40 sm 56 sm 50 sm 20 sm \(ax = b\)englamaning cheksiz ko’p ildizi mavjud. bx=a tenglamaning nechta ildizi bor? bitta cheksiz ko’p ildizi yo’q ikkita Agar \(\left\{ {\begin{array}{*{20}{c}}{4x + 6y = 98}\\{6x + 4y = 92}\end{array}} \right.\)bo’lsa, x+y ni toping. 21 \(18\frac{3}{4}\) 20 19 Ikki to’g’ri chiziq kesishganda 4 ta burchak hosil bo’ldi. Bir burchakning kattaligi ikkinchisidan \(100^\circ \) ga katta. Ikkita eng katta burchakning yig’indisini toping. 280 140 80 300 \({({x^7} \cdot {x^6} \cdot {x^6} \cdot {x^8})^9}\) ifodani \({({x^2})^7} \cdot {({x^2} \cdot {x^{10}})^6}\) ifodaga bo’lganda bo’linma \({x^A}\) chiqdi. A ni toping. 157 213 12 231 Hisoblang: \(\frac{{{2^7} \cdot {4^{10}} \cdot {8^8} \cdot {{16}^8}}}{{{{32}^{16}}}}\) 1 4 8 2 Abituriyentga 36 ta masala berildi. To‘g‘ri yechilgan har biriga 3 ball beriladi. Noto‘g‘risiga 2 ball chegiriladi. 88 ball to‘plashi uchun o‘quvchi nechta masalani to‘g‘ri yechishi kerak? 38 30 34 32 Teng yonli trapetsiyaning diagonali uni ikkita teng yonli uchburchakka ajratadi. Trapetsiyaning burchaklarini toping. 720, 1080 1000, 800 1350, 450 820, 980 x sonining necha foizini x ning 30% ining 30% i tashkil qiladi ? 30 60 90 9 . Tenglamaning natural sonlardagi yechimida \[z\] ni toping: \[x + \frac{1}{{y + \frac{1}{z}}} = \frac{{68}}{{21}}\] 4 2 5 3 Ikki natural sonning eng kichik umumiy karralisi 240 ga teng, shu sonlarning eng katta umumiy bo'livchisi esa 16 ga teng. Bu sonlarning ko’paytmasini toping. 3840 224 15 256 Kirish imtixonlari topshirilayotgan auditoriyadagi abituriyentlarning 40% i qizlar, qolganlari esa o’g’il bolalar. Auditoriyada eng kami bilan qancha abituriyent bo’lishi mumkin? 20 10 5 50 Facebook Twitter VKontakte 0% Restart quiz