Matematika 106/4


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va ga, ular orasidagi burchagi ga teng ixtiyoriy qavariq to’rtburchakning yuzi formula bilan hisoblanadi;
5) o’xshash figuralar yuzlarining nisbati ularning mos chiziqli o’lchovlari kvadratlarining nisbatiga teng.
A) 2;4;5 B) 2;3;4 C) 1;3;4 D) 1;3;5 E) 3;4;5

  • Tekistlikka og’ma va perpendikulyar tushirilgan. Og’maning tekistlikdagi proyeksiyasi 12 ga, perpendikulyarning uzunligi 16 ga teng. Og’ma va perpendikulyar orasidagi burchakni toping.
    A) B) C)
    D) E)

  • vektorning oxiri nuqta bo’lsa, bu vektorning boshini toping.
    A) (1;-2;1) B) (-1;2;-1) C) (1;2;1)
    D) (1;2;-1) E) (-1;2;1)

  • Qirrasi 28 ta bo’lgan piramidaning yon yoqlari nechta?
    A) 15 B) 16 C) 12 D) 18 E) 14

  • Quyidagi tasdiqlarning qaysilari to’g’ri?
    1) ikkita o’xshash jismlarning nisbati ularning mos chiziqli o’lchovlari kublarining nisbatiga teng;
    2) silindrning hajmi asosining yuzi bilan balandligi ko’paytmasiga teng;
    3) sharning hajmi ga teng;
    4) shar segmentining hajmi ga teng (-shar segmentining balandligi,
    -sharning radiusi);
    5) asosining radiusi ga, yasovchisi ga teng konus yon sirtining yuzi ga teng;
    A) 1;2;4 B) 1;3;4 C) 1;2;5 D) 2;4;5 E) 2;3;4

  • Agar bo’lsa, ni hisoblang.
    A) B) -0,5 C) 0,5 D) E) 1,5

  • Quyidagi formulalarning qaysilari to’g’ri?
    1)
    2)
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