Core Connections Integrated III, 2015
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Core Connections Integrated III, 2015 View details
1. Section 9.1
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Exercise 20 Page 439

The domain is all of the x-values for which a function is defined.

All real numbers of θ.

Practice makes perfect

The domain is all of the x-values for which a function is defined. Let's graph the function.

As we can see, the function extends indefinitely in both the negative and positive horizontal direction. Therefore, the domain is all real numbers of θ.