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Concept explainers
Use a calculator to estimate the given limits numerically. (See Examples 1-3.)
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Chapter 11 Solutions
Pearson eText for Mathematics with Applications In the Management, Natural, and Social Sciences -- Instant Access (Pearson+)
- Let M be a proper subspace of a finite dimension vector space X over a field F show that whether: (1) If S is a base for M then S base for X or not, (2) If T base for X then base for M or not. (b) Let X-P₂(x) be a vector space over polynomials a field of real numbers R, write with L prove convex subset of X and hyperspace of X. Q₂/ (a) Let X-R³ be a vector space over a over a field of real numbers R and A=((a,b,o), a,bE R), A is a subspace of X, let g be a function from A into R such that gla,b,o)-a, gEA, find fe X such that g(t)=f(t), tEA. (b) Let M be a non-empty subset of a space X, show that M is a hyperplane of X iff there Xiff there exists fE X/10) and tE F such that M=(xE X/ f(x)=t). (c) Show that the relation equivalent is an equivalence relation on set of norms on a space X.arrow_forwardQ/(a)Let X be a finite dimension vector space over a field F and S₁,S2CX such that S₁SS2. Show that whether (1) if S, is a base for X then base for X or not (2) if S2 is a base for X then S, is a base for X or not (b) Show that every subspace of vector space is convex and affine set but the conevrse need not to be true. allet M be a non-empty subset of a vector space X over a field F and x,EX. Show that M is a hyperspace iff xo+ M is a hyperplane and xo€ xo+M. bState Hahn-Banach theorem and write with prove an application about it. Show that every singleten subset and finite subset of a normed space is closed. Oxfallet f he a function from a normad roace YI Show tha ir continuour aty.GYiffarrow_forwardarc. Consider the network of Figure 2, where the capacities of arcs are given in rectangles at each (i) Knowing that (W, W) with W = network. {s, a, b, c} is a minimal s- t cut suggest a maximal flow for thisarrow_forward
- Consider the problem of minimising the Euclidean distance from the point (-4,5) in the plane to the set of points (x, y) that have integer coordinates and satisfy the inequality: x2 y² + ≤1. 4 9 (a) Use an exhaustive search to solve this problem. (b) Use a local search method to solve this problem. First, define the search space and the neighbourhood. Then, attempt to find the minimum starting from the initial point (x, y) = (2,0). The neighbourhood of a point should contain at least two distinct points but must not encompass the entire feasible search space. Will your local search method find the global optimum?arrow_forwardConsider the relation ✓ on R² defined by u ≤ v u₁ + v₂+ 3u1 v² < u₂ + v³ + 3u²v₁ (u³ + v2 + 3u1v = u₂+ v³ + 3u²v₁ and u₂ < v2) u = v for any u, vЄR² with u = = (u1, u2), v = = (V1, V2). or 우우 or 1. Prove that the relation ✓ is translation invariant. Hint: Use the formula of (a + b)³ for a, b = R. 2. Is the relation ✓ scale invariant? Justify your answer. 3. Is the relation ✓ reflexive? Justify your answer. 4. Is the relation ✓ transitive? Justify your answer. 5. Is the relation ✓ antisymmetric? Justify your answer. 6. Is the relation ✓ total? Justify your answer. 7. Is the relation ✓ continuous at zero? Justify your answer.arrow_forwardLet X = [−1, 1] C R and consider the functions ₤1, f2 : X → R to be minimised, where f₁(x) = x + x² and f2(x) = x-x² for all x Є X. Solve the tradeoff model minøx µƒ₁(x)+ƒ2(x), for all values of µ ≥ 0. Show your working.arrow_forward
- 7 3 2 x+11x+24 9 2 5 x+11x+24arrow_forwardConsider the following linear programming problem: min x1 x2 3x3 − x4 s.t. — 2x1 − x2 − x4 ≤ −6 x1 x2 x3 + 2x4 <4 x1, x2, x3, x4 ≥ 0. (i) Write an equivalent formulation of this problem, to which the primal-dual algorithm can be applied. (ii) Write out the dual problem to the problem, which you formulated in (i). (iii) Solve the problem, which you formulated in (i), by the primal-dual algorithm using the dual feasible solution π = (0, -3). Write a full record of each iteration.arrow_forward2 4 + 4x 2x 8 || 12arrow_forward
- ୮ dx L1+zadz 1+x2arrow_forwardConsider the following Boolean Satisfiability problem: X2 F (X1, X2, X3, X4, x5) = (x1 √ √ ¤;) ^ (ס \/ ˜2\/×3)^(×k \/×4 \/ ×5) ^^\ (×1\/15), Є where i Є {2, 3, 4, 5}, j = {1, 4, 5}, k = {1, 2, 3} and l € {1, 2, 3, 4}. xk Can this problem be solved by using the Divide and Conquer method?arrow_forwardYou assume that the annual incomes for certain workers are normal with a mean of $28,500 and a standard deviation of $2,400. What’s the chance that a randomly selected employee makes more than $30,000?What’s the chance that 36 randomly selected employees make more than $30,000, on average?arrow_forward
- Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:CengageTrigonometry (MindTap Course List)TrigonometryISBN:9781337278461Author:Ron LarsonPublisher:Cengage Learning
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