MediumLinear systems

Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §11.4 Matrices and Linear Equations, #24 · Linear Algebra · Linear systems

What is the determinant of … in Problems 21–23

What is the determinant of $A$ in Problems 21–23? What is $A^{- 1}$ ? Check that $A^{- 1} A = I$ .

This exercise builds on another exercise in its source book, which isn't shown here.

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §11.4 Matrices and Linear Equations, #24

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