Chapter 1, Problem 8RE

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8th Edition

James Stewart

ISBN: 9781305270343

Textbook Problem

Find the domain and range of the function. Write your answer in interval notation.

**8.** *F(t)* = 3 + cos 2*t*

To determine

**To find:** The domain and the range of the function.

Explanation

**Given:**

The function

**Definition used:**

The domain is the set of all input values of the function for which the function is real and defined.

**Calculation:**

Recall the fact that the domain of the cosine function is

Note that the adding 3 to the cosine function does not change the domain.

Thus, domain of the function

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