The cross product of two
See Definition A.9 and Theorem A.11 in theAppendix. Consider an arbitrary vector
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- Express each column vector of BB as a linear combination of the column vectors C₁, C₂, and c3 of B. B = 105 -3 4 1 1 3 17 Enter first column as a linear combination of columns of B in terms of the vectors C₁, C₂, and c3: Enter second column as a linear combination of columns of B in terms of the vectors C₁, C₂, and c: Enter third column as a linear combination of columns of B in terms of the vectors C₁, C₂, and c3:arrow_forward(Left nullspace) Add the extra column b and reduce A to echelon form: 1 2 3 b₁ 1 2 3 b₁ [A b] = 4 5 6 b2 → 0-3-6 b2-4b1 789 63 0 00 b3 - 252 + b₁ A combination of the rows of A has produced the zero row. What combination is it? (Look at b3 -2b2 + b₁ on the right side.) Which vectors are in the nullspace of AT and which vectors are in the nullspace of A?arrow_forwarda. Write the vector (23, -12, -19) as a linear combination of a₁ = (3, -2, -1), a2 (2, -3, -1) and ã3 = (-2, -2, 4). Express your answer in terms of the == named vectors. Your answer should be in the form 4ã₁ + 5ã2 + 6a3, which would be entered as 4a1 + 5a2 + 6a3. (23,-12,-19) b. Represent the vector (23, -12, -19) in terms of the ordered basis B={(3,-2,-1), (2, -3, -1), (-2, -2, 4)}. Your answer should be a vector of the general form . [(23, 12, 19)] B =arrow_forward
- Give the vector result of a + b + c as a sum of its i and j components. [Give an answer using the letters i and j, such as 15i+ 29 j.]arrow_forwarda, b, and c are vectors. Then the expression a×c+b×a is (a) Meaningless (b) A vector collinear with a (c) A vector orthogonal to aarrow_forwardSay that a is a vector (nonzero) in the third dimension. b and c are two other vectors. If a x b = a x c, is b = c?arrow_forward
- please answerarrow_forwardIf possible, find a linear combination of the form w = a₁v₁ + a₂₂ + 3⁄³ where v₁ = (2, −1, 4), v₂ = (3, 0, 1), v3 = (1, 2, −1), and w = (-7, 1, 5). (Give a, a, and a3 as real numbers. If w cannot be written as a linear combination of the other three vectors, enter DNE.) (₁₁²₂₁²3) =arrow_forwardLet -0-0-0-0 V2 = w= -5 = -2 = = If possible, express w as a linear combination of the vectors V₁, V2 and v3. Otherwise, enter DNE. For example, the answer w = 4v₁ + 5v2 + 603 would be entered 4v1 + 5v2 + 6v3.arrow_forward
- For two vectors A and B, what is the value of A x B²+ (A.B)²?arrow_forwardFor any two non-zero, non-parallel vectors ā and b, the vectors ā x b and (2ā + b) × (ā – b) are parallel. True Falsearrow_forwardLet a = (6, 7, -2) and b = (4, 4, –1) be vectors. Compute the following vectors. A. a + b =( 10 11 -3 B. -8a = ( -48 -56 16 C. a – b =( 2 3 -1 D. Ja| : sqrt(81)arrow_forward
- Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:CengageLinear Algebra: A Modern IntroductionAlgebraISBN:9781285463247Author:David PoolePublisher:Cengage Learning