10:32 Let A 3 4 5 6 93 R=12 3 7 8 9 10 X
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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Answer from d onwards please
![10:32
Let
A = {3,4,5,6,9},
Write down each of the following sets.
(a) An B.
(b) {b-2: be B and b+2 ¢ A}.
B = {2,3,7,8,9, 10}.
Now write down each of the following numbers.
(c) The number of 3-element subsets of B.
(d) The number of non-empty subsets of B.
Describe all of the following sets by listing their elements.
(e) The set of composite numbers less than 17.
(f) {a e N lcm(a, 6) = 42}.
(g) The set of complex numbers z such that z4 = 1.
[No justification is required for any parts of this question.]
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Transcribed Image Text:10:32
Let
A = {3,4,5,6,9},
Write down each of the following sets.
(a) An B.
(b) {b-2: be B and b+2 ¢ A}.
B = {2,3,7,8,9, 10}.
Now write down each of the following numbers.
(c) The number of 3-element subsets of B.
(d) The number of non-empty subsets of B.
Describe all of the following sets by listing their elements.
(e) The set of composite numbers less than 17.
(f) {a e N lcm(a, 6) = 42}.
(g) The set of complex numbers z such that z4 = 1.
[No justification is required for any parts of this question.]
X
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