MSc Economics Preparatory Module
1. Consider . What is the determinant of ? Is invertible?
2. True or false: any identity matrix is its own inverse.
3. Which statements about matrix inversion are true? (Multiple choice)
4. Consider . Invert this matrix. What is the smallest eigenvalue of the inverse ?
5. Consider the matrix . The matrix is…
6. Consider two invertible matrices . How can you simplify ? (Hint: recall the rule for the transpose of a product given early in Chapter 2.)
Question 1 of 6
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