Question: Please help me help solve this Linear Algebra question 12. Given the matrix A = 1 -2 -2 -1 2 11 3 1 4 a.

Please help me help solve this Linear Algebra question

12. Given the matrix A = 1 -2 -2 -1 2 11 3 1 4 a. What is the rank (A) ? b. Find a basis for Nul(A). c. What is the nullity (AT)? d. Is (. a basis for Col(A) ? Why or why not

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