a. β βββββ β{β β} A. β ββ{β β} because β is a subset of β{β β}. B. β ββ{β β} because β is not a subset of β{β β}. C. β ββ{β β} because β is not an element of β{β β}. D. β ββ{β β} because β is an element of β{β β}.
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The set {β } has one element, which is β . Show moreβ¦
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