Concept explainers
To simplify: The given trigonometric expression and check the result using the table feature of a graphing utility.
![Check Mark](/static/check-mark.png)
Answer to Problem 33E
The result is numerically verified.
Explanation of Solution
Given information:
The given trigonometric expression:
Formula used:
Reciprocal identity:
Pythagorean identity:
Calculation:
As per problem,
The given trigonometric expression:
Use the Reciprocal identity
Graph:
Sketch the graph using graphing utility.
Step 1: Press WINDOW button to access the Window editor.
Step 2: Press
Step 3: Enter the expressions
Step 4: Press GRAPH button to graph the function.
The curve of
The table of values shows points (indicated in black in the graph) that coincide for both the expressions.
Interpretation: According to the above graph, it can be observed that
Therefore numerically,
Chapter 5 Solutions
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