\left| \begin{array} { c c c } { 4 } & { 3 } & { - 1 } \\ { 5 } & { - 3 } & { 3 } \\ { - 5 } & { 1 } & { - 2 } \end{array} \right|
Baholash
7
Omil
7
Baham ko'rish
Klipbordga nusxa olish
det(\left(\begin{matrix}4&3&-1\\5&-3&3\\-5&1&-2\end{matrix}\right))
Diagonal usulidan foydalanib matritsaning aniqlovchisini topish.
\left(\begin{matrix}4&3&-1&4&3\\5&-3&3&5&-3\\-5&1&-2&-5&1\end{matrix}\right)
Birinchi ikki ustunni to'rtinchi va beshinchi ustun sifatida qaytarish uchun asl matritsani kengaytirish.
4\left(-3\right)\left(-2\right)+3\times 3\left(-5\right)-5=-26
Pastki chap kiritmadan boshlab diagonal kamayish tarafga ko'paytirish ha koʻpaytmalarni qo'shish.
-5\left(-3\right)\left(-1\right)+3\times 4-2\times 5\times 3=-33
Pastki chap kiritmadan boshlab diagonal ko'payish tarafga koʻpaytirish va koʻpaytmalarni qoʻshish.
-26-\left(-33\right)
Kamayib boruvchi diagonal koʻpaytmalarning yig'indisidan ko'payib boruvchi diagonal koʻpaytmalar yig'indisini ayirish.
7
-26 dan -33 ni ayirish.
det(\left(\begin{matrix}4&3&-1\\5&-3&3\\-5&1&-2\end{matrix}\right))
Kichik a'zolarni kengaytirish usulidan foydalanib matritsaning aniqlovchisini topish (ko'paytiruvchilarni kengaytirish deb ham nomlanadi).
4det(\left(\begin{matrix}-3&3\\1&-2\end{matrix}\right))-3det(\left(\begin{matrix}5&3\\-5&-2\end{matrix}\right))-det(\left(\begin{matrix}5&-3\\-5&1\end{matrix}\right))
Kichik a’zolarga kengaytirish uchun birinchi satrning har bir elementini o‘zining kichik a’zosiga ko‘paytiring, qaysiki ana shu elementga ega bo‘lgan satr va ustunni yo‘q qilish orqali yaratilgan 2\times 2 matritsasining maxraji hisoblanadi, so‘ngra elementning joylashuv belgisiga ko‘paytiring.
4\left(-3\left(-2\right)-3\right)-3\left(5\left(-2\right)-\left(-5\times 3\right)\right)-\left(5-\left(-5\left(-3\right)\right)\right)
\left(\begin{matrix}a&b\\c&d\end{matrix}\right) 2\times 2 matritsasi uchun, determinant ad-bc.
4\times 3-3\times 5-\left(-10\right)
Qisqartirish.
7
Yakuniy natija olish uchun shartlarni qo'shish.
Misollar
Ikkilik tenglama
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometriya
4 \sin \theta \cos \theta = 2 \sin \theta
Chiziqli tenglama
y = 3x + 4
Arifmetik
699 * 533
Matritsa
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simli tenglama
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differensatsiya
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Oʻngga
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Chegaralar
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}