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Let b. The dimension of the row space of A is A. Two of the three columns in rref(A) are free variable columns. B. Two of the three rows in rref(A) do not have a pivot. C. rref(A) is the identity matrix. D. The basis we found for the row space of A has two vectors. E. rref(A) has a pivot in every row. F. Two of the three rows in rref(A) have pivots. A c. The row space of A is a subspace of = 1 01 a. A basis for the row space of A is { }. You should be able to explain and justify your answer. Enter a coordinate vector, such as <1,2,3>, or a comma separated list of coordinate vectors, such as <1,2,3>,<4,5,6>. -4 -3 -8 0 because (select all correct answers there may be more than one correct answer): because each row of A is a vector in R^3 d. The geometry of the row space of A is a 2-dimensional plane through the origin inside R^3 ✓
Let b. The dimension of the null space of A is A. rref(A) has one free variable column. B. rref(A) is the identity matrix. C. rref(A) has a pivot in every row. D. Two of the four columns in rref(A) have pivots. A a. A basis for the null space of A is { }. You should be able to explain and justify your answer. Enter a coordinate vector, such as <1,2> or <1,2,3,4>, or a comma separated list of coordinate vectors, such as <1,2>,<3,4> or <1,2,3,4>,<5,6,7,8>. because (select all correct answers there may be more than one correct answer): E. Three of the four columns in rref(A) do not have a pivot. F. rref(A) has three free variable columns. G. The basis we found for the null space of A has three vectors. c. The null space of A is a subspace of = -9 -9 -6 3 3 2 because A has 4 columns ✓ d. The geometry of the null space of A is a 3-dimensional subspace of R^4
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