Question: please do # 9, 19, 69, 83(a) In Exercises 5-12, a matrix A is given. Determine the dimension of (a) Col A. (b) Null A.

please do # 9, 19, 69, 83(a)

please do # 9, 19, 69, 83(a) In Exercises 5-12, aplease do # 9, 19, 69, 83(a) In Exercises 5-12, aplease do # 9, 19, 69, 83(a) In Exercises 5-12, aplease do # 9, 19, 69, 83(a) In Exercises 5-12, a
In Exercises 5-12, a matrix A is given. Determine the dimension of (a) Col A. (b) Null A. (c) Row A, and (d) Null A. 2 -3 5. [2 -8 -4 6] 6. 0 - 1 LL 4 7. 2 -1 27 -2 6 2 9. - 1 2 -2 W IE 2 3\f69. (a) Find bases for the row space and null space of the matrix in Exercise 9. (b) Show that the union of the two bases in (a) is a basis for R4.83. (a) Show that for any vector u in R". u u = 0 if and only if u = 0

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