
Concept explainers
(a)
To find: The domain and range of the function
(a)

Answer to Problem 4QQ
The domain and range of the function
Explanation of Solution
Given information: The function is
Calculation:
The function
So, the domain of the function
The value of function
So, the range of the function
(b)
To check: Whether the function
(b)

Answer to Problem 4QQ
The function
Explanation of Solution
Given information: The function is
Calculation:
Check the value of
Substitute
The trigonometric function cosine is even function. So,
Substitute
The function
Therefore, the function
(c)
To find: The value of limit
(c)

Answer to Problem 4QQ
The value of limit
Explanation of Solution
Given information: The function is
Calculation:
Evaluate the limit by substitution.
Therefore, the value of limit
(d)
To find: The value of limit
(d)

Answer to Problem 4QQ
The value of limit
Explanation of Solution
Given information: The function is
Calculation:
The value of the trigonometric function cosine lies between and equal to
Divide each side of inequality by
Apply limit to all the sides of inequality.
So, the limit of the function
Therefore, the value of limit
Chapter 2 Solutions
Calculus: Graphical, Numerical, Algebraic
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