# Chapter 10 Counting Methods and Probability - Extension - Apply Set Theory - Practice - Page 716: 3

$$1,4,6,8,9,10,12,14,15,16,18,19,20$$

#### Work Step by Step

The bar means that we choose all of the values not in A between 1 and 20. Thus: $$1,4,6,8,9,10,12,14,15,16,18,19,20$$

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