Mathematics, 13.07.2019 19:20 jake2920
Proof). study the following claim as well as the "proof" problem 4.5 (grade a claim. for all sets a, b, c and d, (ax b)- (cx d) (a- c) x (b- d). "proof". let a. b, c and d be sets. let (x, y) (ax b) - (c (z, y) ax b and (z. y) cx d. thus r a, z c. y eb and y d. in other words, z e a-c and y eb-d; hence (r. y) since every element in (a x b) -(c x d) is in (a - c) x (b- d), (ax b) -(c x d) (a - c) x (b - d). this completes the proof. d), so that x e (a- c) x (b - d). we conclude complete the following questions concerning the above claim and "proof" (1) determine whether the "proof" is rigorous. identify the issues in the "proof", if any (2) determine whether the claim is true or false. justify the answer in part (3). (3) if the the claim is true and the "proof" is not rigorous, then provide a correct and rigorous proof. if the claim is false, give a concrete counterexample. hint. complete the parts as instructed. if the claim is false, then (obviously) there is no way the "proof" could be correct.
Answers: 1
Mathematics, 21.06.2019 12:50
Describe all the numbers that when rounded to the nearest thousand are 645,000
Answers: 3
Mathematics, 21.06.2019 19:40
What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1
Answers: 2
Mathematics, 21.06.2019 23:20
Suppose a laboratory has a 30 g sample of polonium-210. the half-life of polonium-210 is about 138 days how many half-lives of polonium-210 occur in 1104 days? how much polonium is in the sample 1104 days later? 9; 0.06 g 8; 0.12 g 8; 2,070 g
Answers: 1
Proof). study the following claim as well as the "proof" problem 4.5 (grade a claim. for all sets a,...
History, 22.11.2020 06:10
Physics, 22.11.2020 06:10
Chemistry, 22.11.2020 06:10
Mathematics, 22.11.2020 06:10
Mathematics, 22.11.2020 06:10
Biology, 22.11.2020 06:10
Law, 22.11.2020 06:10
History, 22.11.2020 06:10
Chemistry, 22.11.2020 06:10
Engineering, 22.11.2020 06:10
Mathematics, 22.11.2020 06:10
Computers and Technology, 22.11.2020 06:10