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In Exercises 7–14, either use an appropriate theorem to show that the given set, W, is a
7.
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Chapter 4 Solutions
Thomas' Calculus and Linear Algebra and Its Applications Package for the Georgia Institute of Technology, 1/e
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- 2. Find the projection projuv, where u = (1,3,-2) and v = (2,-1,3).arrow_forward1. Let V₁, V2,...,Vn be n vectors in a vector space V. Explain what it means to say that these vectors span V.arrow_forwardCompute the products in Exercises 1–4 using (a) the definition, as in Example 1, and (b) the row–vector rules for computer Ax, or, the rule for computing a product Ax in which the i th entry of Ax is the sum of the products of corresponding entries from row i of A and from the vector x. If a product is undefined, explain why.arrow_forward
- 3. Let V = C2 and F = C along with the following operations defined: (a1,a2) + (b1, b2) =(a1 + b1 + 1, az + b2 + 1) C(a1, a2) =(ca1 + c – 1, ca2 + c – 1) Determine whether this is a Vector Space.arrow_forward6. Show that the vectors (1,1,0), (1, 0, 1), and (0, 1, 1) generate F³.arrow_forward1.W.4 We'll work inside the vector space of polynomials in degree < 2, which is denoted P<2. Let P1 = 1, p2 = x + 2, and p3 = (x + 2)². Leť's think about Span{p1, P2, P3}. a) What polynomial is 3p1 + 2p2 – P3? b) I claim that a = a¡P1 + a2P2 + azp3 for some coefficients a1, a2, az in R. Find a1, a2, az. Hint: az = 0. c) I claim that a? = bịPi + b2p2 + b3p3 for some coefficients b1, b2, bz in R. Find b1, b2, bz. Hint: This problem isn't quite so cut and dry. Try to find three equations, one for each coefficient in the polynomial, and solve them for b1, b2, b3.arrow_forward
- ??????arrow_forwardVerify that each of the sets in Examples 1– 4 satisfies the axioms fora vector space. Find a basis for each of the vector spaces inExamples 1–4.arrow_forward25. Consider the following elements of the polynomial vector space. Are they linearly independent? 1 + x,x+x², 1-x²arrow_forward
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