Matritsalar va Algebra

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Questions and Answers

Agar $\begin{pmatrix} 4 & -2 \ -6 & 2 \end{pmatrix} = m \begin{pmatrix} 2 & -1 \ -3 & 1 \end{pmatrix}$ bo‘lsa, m ni toping.

  • 4
  • 2 (correct)
  • -4
  • -2

Agar $A = \begin{pmatrix} 0 & 1 \ 1 & 0 \end{pmatrix}$ va $B = \begin{pmatrix} 1 & 1 \ 0 & 1 \end{pmatrix}$ matritsalar berilgan bo‘lsa, $2A + B$ ni toping.

  • \begin{pmatrix} 1 & 3 \\ 2 & 1 \end{pmatrix} (correct)
  • \begin{pmatrix} 0 & 2 \\ 1 & 3 \end{pmatrix}
  • \begin{pmatrix} 1 & 0 \\ 2 & 3 \end{pmatrix}
  • \begin{pmatrix} 1 & 2 \\ 2 & 1 \end{pmatrix}

M ning qanday qiymatida $\begin{cases} 6x - 4y = 15 \ 2x + my = 3 \end{cases}$ sistema yechimga ega bo‘lmaydi?

  • $-\frac{4}{3}$ (correct)
  • $\frac{3}{4}$
  • $-\frac{3}{4}$
  • $\frac{4}{3}$

A(6;4;2) va B(8;-2;5) berilgan bo‘lsa, AB vektorning uzunligini toping.

<p>7 (B)</p> Signup and view all the answers

$\begin{cases} x = 1 \ x + 2y = 3 \ x + y - z = 0 \end{cases}$ sistemaning yechimini toping.

<p>(1;1;2) (B)</p> Signup and view all the answers

Agar $\begin{vmatrix} 1 & 2 \ 3 & x \end{vmatrix} = 0$ bo‘lsa, $x$ ning qiymatini toping.

<p>6 (A)</p> Signup and view all the answers

Quyidagi determinantni hisoblang: $\begin{vmatrix} a_1 & a_1 & b_1 \ a_2 & a_2 & b_2 \ a_3 & a_3 & b_3 \end{vmatrix}$

<p>0 (B)</p> Signup and view all the answers

Agar $A = \begin{pmatrix} a_{11} & a_{12} \ a_{21} & a_{22} \end{pmatrix}$ bo‘lsa, $a \times A$ ni toping (bunda $a \in R$).

<p>$\begin{pmatrix} a a_{11} &amp; a a_{12} \ a a_{21} &amp; a a_{22} \end{pmatrix}$ (A)</p> Signup and view all the answers

$\begin{vmatrix} 4 & 2 \ -3 & 1 \end{vmatrix} $ determinantni hisoblang.

<p>1 (D)</p> Signup and view all the answers

$\begin{vmatrix} 4 & 2 \ -3 & 1 \end{vmatrix} = k $ bo'lsa, $k$ ni toping.

<p>$\frac{1}{2}$ (C)</p> Signup and view all the answers

Flashcards

Determinant

Bir matritsaning belgisi va qiyinligini ko'rsatadi.

Algebraik to‘ldiruvchi

Determinant hisoblashda bir elementni o'zgartiradi.

Minor

Matritsaning bir elementi atrofidagi boshqa elementlar bilan hosil bo‘lgan determinant.

Matritsa ko'paytirish

Ikki matritsaning elementlarini kombinatsiyalab yangi matritsa olish jarayoni.

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Tenglama yechish

Matematika jarayonida x ni aniqlash uchun tenglama yechish.

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Matritsalar qo'shish

Ikki yoki undan ortiq matritsalarni elementlari bo'yicha qo'shish jarayoni.

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Vektor uzunligi

Vektorning uzunligini topish formulasi |AB| = √((x2-x1)² + (y2-y1)² + (z2-z1)²).

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Perpendicular vektorlar

Ikki vektor o'zaro perpendicular bo'ladi, agar ularning skalyar ko'paytmasi 0 ga teng bo'lsa.

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Koplarnlik sharti

Vektorlarning koplarnlari bo'lishi uchun ularning determinanti 0 ga teng bo'lishi kerak.

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Skalyar ko'paytma

Ikki vektor orasida skalyar ko'paytma, ularning mos keluvchi elementlarining ko'paytmasidan iborat.

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Study Notes

Test Savollari

  • Determinantni hisoblash: Turli matritsalarning elementlari yordamida determinant hisoblash usullari ko'rsatilgan.
  • Algebraik to'ldiruvchilar: Elementlarning algebraik to'ldiruvchilarini topish bo'yicha amallar ko'rsatilgan.
  • Tenglamalarni yechish: Berilgan chiziqli tenglamalar sistemasining yechimlari topilgan.
  • Matritsa amallari: Matritsalar ustida qo'shish, ayirish, ko'paytirish kabi amallar bajarishga oid misollar keltirilgan.
  • Vektorlar: Vektorlarning uzunligi, skalyar va vektor ko'paytmalari, parallel va perpendikulyar vektorlar bilan bog'liq masalalar berilgan.
  • Tekisliklar: Tekisliklarning tenglamalarini topish, vektorlar va tekisliklarning bir-biri bilan boÊ»lgan munosabatlari boÊ»yicha misollar keltirilgan.
  • Ellips, Giperbola va Parabolalar: Bu konus kesiklarining tenglamalari va xossalari tavsiflangan.
  • Limitlar: Turli funksiyalarning limitlarini topish masalalari ko'rsatilgan.

Matritsalar

  • Determinant: Determinantni hisoblash formulalari va misollar keltirilgan.
  • Matritsa amallari: Matritsalar ustida arifmetik amallar (qoÊ»shish, ayirish, koÊ»paytirish) qanday amalga oshirilishini ko'rsatuvchi misollar.
  • Orqa matritsa: Orqa matritsalarni topish usullari ko'rsatilgan.
  • Vektorlarning skalyar va vektor ko'paytmalari: Vektorlarning turli ko'paytmalarini hisoblash usullari ko'rsatilgan.

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