a) Find how many numbers in A are not divisible by 13 and 7. (b) Find the number of subsets B C A such that Bn{1,2,3, 4} = {1}.
a) Find how many numbers in A are not divisible by 13 and 7. (b) Find the number of subsets B C A such that Bn{1,2,3, 4} = {1}.
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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discrete math
![- Let A = {1,2, ..., 999}.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb9e27b5d-0ab8-428e-954d-97d64fc14c61%2F8f364f40-163c-4ec8-8c5c-91f2a8a3bc05%2Fmdpl0mh_processed.png&w=3840&q=75)
Transcribed Image Text:- Let A = {1,2, ..., 999}.
![(a) Find how many numbers in A are not divisible by 13 and 7.
(b) Find the number of subsets B C A such that Bn{1,2,3,4} = {1}.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb9e27b5d-0ab8-428e-954d-97d64fc14c61%2F8f364f40-163c-4ec8-8c5c-91f2a8a3bc05%2Ftu98y1f_processed.png&w=3840&q=75)
Transcribed Image Text:(a) Find how many numbers in A are not divisible by 13 and 7.
(b) Find the number of subsets B C A such that Bn{1,2,3,4} = {1}.
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