Suppose A E M(R). Write A = (a₁ | |ax). a. A vector x ER is in the null space of A if (select all that apply): DA. 1a1 + + kak = 0₁ B. rref(Ay) has no rows of the form (0...01). Oc.y=z₁a₁ +...+ak for some (₁,...,) E R. D. The dot product of x with every row vector from A is 0. DE. y = Ax for some x E R. OF. y E span{a1,..., ak). OG. Ax = 0,. b. A vector y ER" is in the column space of A if (select all that apply): A. The dot product of x with every row vector from A is 0. OB. y E span{a₁,..., ak). DC. rref (Ay) has no rows of the form (0...01). D.y=Ax for some x € R*. DE ₁a1 + + OF. y = a₁ + OG. Ax=0, kak = 0₁₁ +a for some (₁,..., ) ER*.
Suppose A E M(R). Write A = (a₁ | |ax). a. A vector x ER is in the null space of A if (select all that apply): DA. 1a1 + + kak = 0₁ B. rref(Ay) has no rows of the form (0...01). Oc.y=z₁a₁ +...+ak for some (₁,...,) E R. D. The dot product of x with every row vector from A is 0. DE. y = Ax for some x E R. OF. y E span{a1,..., ak). OG. Ax = 0,. b. A vector y ER" is in the column space of A if (select all that apply): A. The dot product of x with every row vector from A is 0. OB. y E span{a₁,..., ak). DC. rref (Ay) has no rows of the form (0...01). D.y=Ax for some x € R*. DE ₁a1 + + OF. y = a₁ + OG. Ax=0, kak = 0₁₁ +a for some (₁,..., ) ER*.
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.4: The Dot Product
Problem 46E
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