Suppose a1, a2, ag, a4, and ag are vectors in R°, A = (a1 a2 a3 a4 ag), and 1 0 0 -5 41 rref(A) =|0 1 0 0 0 1 -2 2 1 a. Select all of the true statements (there may be more than one correct answer). OA. span{a1,a2, ag} = R OB. {a1, a2, a3} is a basis for R* Oc. {a1, a2, a3, a4} is a basis for R OD. span{a1, a2, ag, a4} = R³ OE. {a1, a2, a3, a4} is a linearly independent set OF. {a1, a2, as} is a linearly independent set OG. {a1, az} is a linearly independent set OH. {a1, az} is a basis for R Ol. span{a1, az} b. If possible, write ag as a linear combination of a1, a2, and a3 otherwise, enter DNE. a4 c. The dimension of the column space of A is , and the column space of A is a subspace of d. Find a basis for the column space of of A. If necessary, enter a1 for a,, etc., or enter coordinate vectors of the form <1,2,3> or <1,2,3,4,5>. Enter your answer as a comma separated list of vectors. A basis for the column space of A is { } e. The dimension of the null space of A is and the null space of A is a subspace of f. If x1 = (5, 2,-1,1,0), then Ax1 Is x1 in the null space of A? choose v

Advanced Engineering Mathematics
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Chapter2: Second-order Linear Odes
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Suppose a1, a2, a3, a4, and ag are vectors in R°, A = (a1 | a2 | as | a4 | a5), and
-5
4
rref(A) =
0 1 0
0 0 1
-2 2
1
1
a. Select all of the true statements (there may be more than one correct answer).
OA. span{a1, a2, ag} = R
OB. {a1, a2, a3} is a basis for R
Oc. {a1, a2, a3, a4} is a basis for R3
OD. span{a1, a2, ag, a4} = R³
OE. {a1, a2, a3, a4} is a linearly independent set
OF. {a1, a2, az} is a linearly independent set
OG. {a1, az} is a linearly independent set
OH. {a1, a2} is a basis for R3
OI. span{a1, a2}
b. If possible, write a, as a linear combination of a, a2, and ag; otherwise, enter DNE.
a4 =
c. The dimension of the column space of A is
and the column space of A is a subspace of
d. Find a basis for the column space of of A. If necessary, enter a1 for a,, etc., or enter coordinate vectors of the form <1,2,3> or <1,2,3,4,5>. Enter your answer as a comma separated list of vectors.
A basis for the column space of A is {
e. The dimension of the null space of A is
and the null space of A is a subspace of
f. If x1 = (5, 2, –1, 1,0), then Ax1
Is x, in the null space of A?
choose v
g. If x2 = (-4,-2, –1,0, 1), then Ax2 =
Is x2 in the null space of A? choose v
h. If x3
3x2
4x1 =
then Axg =
Is xg in the null space of A? choose
i. Find a basis for the null space of of A. If necessary, enter a1 for aj, etc., or enter coordinate vectors of the form <1,2,3> or <1,2,3,4>. Enter your answer as a comma separated list of vectors.
A basis for the null space of A is
}
Transcribed Image Text:Suppose a1, a2, a3, a4, and ag are vectors in R°, A = (a1 | a2 | as | a4 | a5), and -5 4 rref(A) = 0 1 0 0 0 1 -2 2 1 1 a. Select all of the true statements (there may be more than one correct answer). OA. span{a1, a2, ag} = R OB. {a1, a2, a3} is a basis for R Oc. {a1, a2, a3, a4} is a basis for R3 OD. span{a1, a2, ag, a4} = R³ OE. {a1, a2, a3, a4} is a linearly independent set OF. {a1, a2, az} is a linearly independent set OG. {a1, az} is a linearly independent set OH. {a1, a2} is a basis for R3 OI. span{a1, a2} b. If possible, write a, as a linear combination of a, a2, and ag; otherwise, enter DNE. a4 = c. The dimension of the column space of A is and the column space of A is a subspace of d. Find a basis for the column space of of A. If necessary, enter a1 for a,, etc., or enter coordinate vectors of the form <1,2,3> or <1,2,3,4,5>. Enter your answer as a comma separated list of vectors. A basis for the column space of A is { e. The dimension of the null space of A is and the null space of A is a subspace of f. If x1 = (5, 2, –1, 1,0), then Ax1 Is x, in the null space of A? choose v g. If x2 = (-4,-2, –1,0, 1), then Ax2 = Is x2 in the null space of A? choose v h. If x3 3x2 4x1 = then Axg = Is xg in the null space of A? choose i. Find a basis for the null space of of A. If necessary, enter a1 for aj, etc., or enter coordinate vectors of the form <1,2,3> or <1,2,3,4>. Enter your answer as a comma separated list of vectors. A basis for the null space of A is }
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