Math Problem Statement
Trong các ma trận sau đây, ma trận nào không phải là ma trận bậc thang? A. [00−4060] B. [000025] C. [10−1040] D. [001039] Reset Selection Question 2 of 20 0.5 Points Xác định đường chéo phụ của ma trận A=⎡⎣⎢−120476398⎤⎦⎥. A. −1,7,8 B. −1,2,6 C. −1,2,0 D. 3,7,0 Reset Selection Question 3 of 20 0.5 Points Xác định phần tử cơ sở của ma trận A=⎡⎣⎢013090705⎤⎦⎥. A. 7,1,3 B. 7,9,3 C. 0,9,5 D. 0,0,7
Solution
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Math Problem Analysis
Mathematical Concepts
Matrix Theory
Row Echelon Form
Diagonal Elements
Pivot Elements
Formulas
Row echelon form conditions: rows of zeros at the bottom, leading non-zero entries must move rightwards.
Diagonal elements: elements from the top right to bottom left in a square matrix.
Pivot element: the first non-zero element in each row in row echelon form.
Theorems
Row Echelon Form
Pivot Elements Theorem
Suitable Grade Level
Grades 10-12
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