1. Determinantni hisoblang

X=A^-1×B= ×= x₁=-8; x₂=-4; x₃=-13;

b)→ X= B= X=A^-1×B

A^-1= = -1; A₁₁=-3; A₁₂=0; A₁₃=-4; A₂₁=2; A₂₂=1; A₂₃=3; A₃₁=3; A₃₂=2; A₃₃=5

Agebraik to’ldiruvchilardan matritsa yasaymiz: endi buni transponerlaymiz:

Bu matritsaga dastlabki matritsaning determinantini teskari ko’paytirishimiz kerak, determinant -1 bo’lgani uchun matritsa elementlarining ishoralarini almashtirish kifoya

X=A^-1×B= ×= x₁=1; x₂=3; x₃=3;

8. Tenglamalar sistemasini Gauss usulida yeching.