Question: Hi, I am looking for help with this question Algebra (a) Let A = b and B = y 2 W be 2 x 2

Hi, I am looking for help with this question

Algebra (a) Let A = b and B = y 2 W be 2 x 2 matrices. Show by C d explicit calculation that det(AB) = (det A) (det B). 2 1 -2 (b) Let A = 1 0 0 Solve the equation det(A - x]) = 0, that 1 0 is, find all numbers a such that the matrix A-x/ has determinant zero. Here, I is the 3 x 3 identity matrix

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