Find Determinant of Minor Matrix from Terminology (3x3) (Level 1)

This math topic focuses on finding the determinant of minor matrices for 3x3 matrices. Each question requires the calculation of a determinant for a specific sub-matrix (minor matrix) derived from a given 3x3 matrix. The problems involve stepping through matrix-related terminology and enhancing skills in computations of determinants, crucial for understanding more complex properties of matrices in linear algebra.

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Find Determinant of Minor Matrix from Terminology (3x3)

Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.


Find the determinant of the 'minor' matrix indicated

det(M31)  for[239970120]det(M_{31})\;for\left[ {\begin{array} {ccc} 2 & 3 & 9 \\ 9 & 7 & 0 \\ 1 & 2 & 0 \end{array} } \right]

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