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Let A = {4, 5, 6, 7, 8, 10, 11}

A. How many subsets does A have?

B. How many proper subsets does A have?

a. A has ___ subsets.

cassie19  Sep 6, 2017
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#1
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Let A = {4, 5, 6, 7, 8, 10, 11}

A. How many subsets does A have?

B. How many proper subsets does A have?

A. A has $$2^7 = \mathbf{128}$$  subsets

B. A has $$2^7 -1 = \mathbf{127}$$ proper subsets

heureka  Sep 7, 2017

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