Answered: 54. Let A, a) UA₁. i=1 -2, -1, 0, 1,…

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54. Let A, a) UA₁. i=1 -2, -1, 0, 1, ..., i}. Find n b) i=1 A¡.

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Question

I really need help understanding these union and intersection questions, it's really difficult for me to understand. I would really appreciate if you're able to explain the intersection more...

54. Let A; = {..., —2, –1, 0, 1,..., i}. Find
12
b)
a) UA¡.
i=1
i=1
A₁.

56. Find U₁A, and A; if for every positive integer i,
a) A = {i, i+ 1, i+2,...}.
b) A, = {0, i).
c) A = (0, i), that is, the set of real numbers x with
0 < x <i.
d) A = (i, co), that is, the set of real numbers x with
x > i.

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