Compute the product using the methods below. If a product is undefined, explain why. a. The definition where Ax is the linear combination of the columns of A using the corresponding entries in x as weights. b. The row-vector rule for computing Ax. 83 -4 54 2 OA. Xuây Xây …+ Xuân = (X4)âu + (Xz ) 2 + (X3)ông = ( ) + ( ) ( + + +) OL (Type the terms of your expression in the same order as they appear in the original expression.) 1 a. Set up the linear combination of the columns of A using the corresponding entries in x as weights. Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice. Xuây + Xgây t + Xuân = (X4 )âu + (X2)az = ( ) ( (Type the terms of your expression in the same order as they appear in the original expression.) 1 OC. The matrix-vector Ax is not defined because the number of columns in matrix A does not match the number of entries in the vector x. O D. The matrix-vector Ax is not defined because the number of rows in matrix A does not match the number of entries in the vector x.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.4: The Dot Product
Problem 45E
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Compute the product using the methods below. If a product is undefined, explain why.
a. The definition where Ax is the linear combination of the columns of A using the
corresponding entries in x as weights.
b. The row-vector rule for computing Ax.
83
-4
54 2
O A. X₁ a1 +X₂a2+ ... + Xnªn = (X₁ )ª1 + (X₂)ª2 + (x3)ª3 = () + (1+0
(Type the terms of your expression in the same order as they appear in the original expression.)
1
a. Set up the linear combination of the columns of A using the corresponding entries in x as weights. Select the correct
choice below and, if necessary, fill in the answer boxes to complete your choice.
B.
X₁@₁ + X₂ª₂ + ... + Xnªn = (X₁)ª₁ + (X₂)a₂ =
+O
(Type the terms of your expression in the same order as they appear in the original expression.)
1
O C. The matrix-vector Ax is not defined because the number of columns in matrix A does not match the number of
entries in the vector x.
O D. The matrix-vector Ax is not defined because the number of rows in matrix A does not match the number of
entries in the vector x.
Transcribed Image Text:Compute the product using the methods below. If a product is undefined, explain why. a. The definition where Ax is the linear combination of the columns of A using the corresponding entries in x as weights. b. The row-vector rule for computing Ax. 83 -4 54 2 O A. X₁ a1 +X₂a2+ ... + Xnªn = (X₁ )ª1 + (X₂)ª2 + (x3)ª3 = () + (1+0 (Type the terms of your expression in the same order as they appear in the original expression.) 1 a. Set up the linear combination of the columns of A using the corresponding entries in x as weights. Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice. B. X₁@₁ + X₂ª₂ + ... + Xnªn = (X₁)ª₁ + (X₂)a₂ = +O (Type the terms of your expression in the same order as they appear in the original expression.) 1 O C. The matrix-vector Ax is not defined because the number of columns in matrix A does not match the number of entries in the vector x. O D. The matrix-vector Ax is not defined because the number of rows in matrix A does not match the number of entries in the vector x.
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