Find the following cardinalities: a. A = {5, 10, 15, ..., 75} |A| = b. A = {x € Z: - 100 ≤ x ≤ - 17} |A| = c. A = {x € N: x ≤ 10}, B = {x € N: x ≤ 12} |An B| =

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Find the following cardinalities:
a. A = {5, 10, 15, ..., 75}
|A| =
b. A = {x € Z: - 100 ≤ x ≤ - 17}
|A| =
c. A = {x € N: x ≤ 10}, B = {x € N: x ≤ 12}
|An B| =
Transcribed Image Text:Find the following cardinalities: a. A = {5, 10, 15, ..., 75} |A| = b. A = {x € Z: - 100 ≤ x ≤ - 17} |A| = c. A = {x € N: x ≤ 10}, B = {x € N: x ≤ 12} |An B| =
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