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Chapter 27 Solutions
EBK NUMERICAL METHODS FOR ENGINEERS
- 1. Prove the following arguments using the rules of inference. Do not make use of conditional proof. (а) а → (ЪЛс) ¬C ..¬a (b) (pVq) → →r יור (c) (c^h) → j ¬j h (d) s→ d t d -d ..8A-t (e) (pVg) (rv¬s) Лѕ קר .'arrow_forward2. Consider the following argument: (a) Seabiscuit is a thoroughbred. Seabiscuit is very fast. Every very fast racehorse can win the race. .. Therefore, some thoroughbred racehorse can win the race. Let us define the following predicates, whose domain is racehorses: T(x) x is a thoroughbred F(x) x is very fast R(x) x can win the race : Write the above argument in logical symbols using these predicates. (b) Prove the argument using the rules of inference. Do not make use of conditional proof. (c) Rewrite the proof using full sentences, avoiding logical symbols. It does not need to mention the names of rules of inference, but a fellow CSE 16 student should be able to understand the logical reasoning.arrow_forwardFind the inverse of the matrix, or determine that the inverse does not exist for: € (b) 7 -12 240 1 1 1 (c) 2 3 2 2 17 036 205 20 (d) -1 1 2 1 T NO 1 0 -1 00 1 0 02 (e) 1 0 00 0 0 1 1arrow_forward
- 4. Prove the following. Use full sentences. Equations in the middle of sentences are fine, but do not use logical symbols. (a) (b) (n+3)2 is odd for every even integer n. It is not the case that whenever n is an integer such that 9 | n² then 9 | n.arrow_forward3. (a) (b) Prove the following logical argument using the rules of inference. Do not make use of conditional proof. Vx(J(x)O(x)) 3x(J(x) A¬S(x)) . ·.³x(O(x) ^ ¬S(x)) Rewrite the proof using full sentences, avoiding logical symbols. It does not need to mention the names of rules of inference, but a fellow CSE 16 student should be able to understand the logical reasoning.arrow_forwardNo chatgpt pls will upvote Already got wrong chatgpt answerarrow_forward
- 16.4. Show that if z' is the principal value, then 1+e** z'dz = (1-i), 2 where is the upper semicircle from z = 1 to z = -1.arrow_forwardL 16.8. For each of the following functions f, describe the domain of ana- lyticity and apply the Cauchy-Goursat Theorem to show that f(z)dz = 0, where is the circle |2|=1:1 (a). f(z) = 1 z 2 + 2x + 2 (b). f(z) = ze*. What about (c). f(z) = (2z-i)-2?arrow_forward16.3. Evaluate each of the following integrals where the path is an arbitrary contour between the limits of integrations (a). [1 ri/2 edz, (b). (b). La cos COS (2) d dz, (c). (z−3)³dz. 0arrow_forward
- Q/ prove that:- If Vis a finite dimensional vector space, then this equivalence relation has only a single equivalence class.arrow_forward/ prove that :- It is easy to check that equivalence of norms is an e quivalence relation on the set of all norms on V.arrow_forward3) Let R be a set of real number and d:R2 R R such that d((x, y), (z, w)) = √(x-2)² + (y-w)² show that d is a metric on R².H.Warrow_forward
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