If A is a 3x3 matrix and det(A) = 4, what is det(2A)?
If A is a 3x3 matrix and det(A) = 4, what is det(2A)?
Approach: det(cA) = c^n * det(A).
32. 2^3 * 4 = 32.
Follow-up: What is det(A^-1)?
Key concepts: determinant properties.
If A is a 3x3 matrix and det(A) = 4, what is det(2A)?
Approach: det(cA) = c^n * det(A).
32. 2^3 * 4 = 32.
Follow-up: What is det(A^-1)?
Key concepts: determinant properties.