Question: I need help 4. If the solution to the homogeneous equation Ax = 0 includes free variables, what can you say about det A? 1
I need help

4. If the solution to the homogeneous equation Ax = 0 includes free variables, what can you say about det A? 1 5. Given a basis B: v1 = [-4], v2 = [-9] 0 -3 If we have a vector whose B-coordinates vector is [x]B = , what is the vector x in -1 the standard basis? 6. If A is a 12 X 5 matrix a. how big is ATA? Explain. b. If the columns of A are linearly independent, what is rank(A)? Explain
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