Let l [ 1.0 1 r- 1.0 1 r 2.0 11 2.0 3.0 - 1.0 A1= 1n . ~o
Chapter , Problem 87(choose chapter or problem)
Let l [ 1.0 1 r- 1.0 1 r 2.0 11 2.0 3.0 - 1.0 A1= 1n . ~o . =1n 1.0 2.0 1.4 0. I -0.6 -0.3 and (a) Is A1 a basis for the subspace W in Exercise 86? Justify your answer. (b) Is A2 a basis for the subspace IV in Exercise 86? Justify your answer. (c) Let 8, A 1, and A2 be the matrices whose columns are the vectors in /3, A 1 , and A2, respectively. Compute the reduced row echelon fom1s of 8 , A1 A2 Br, A[, and Af
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