For a system of vectors U = {(1,2,9 ); (2,3, 1);(0,-1,1-9);(2,3,10);(1,0,2-9) } . a. Find the number of dimensions and a basis W of the subspace generated by the vector system U .

b. Find the parameter k so that u = (2,3,k3+1) is a linear combination of W , and deduce [ u]W .

answer:  

123455421

step-by-step explanation: easy

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

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i ran through it by the other answer is wrong