To calculate:Thesolution of the equation
Answer to Problem 15E
The solution set of the equation
Explanation of Solution
Given information:
The given equation is
Formula used:
Use the sum to product formula.
Calculation:
Substitute the values of given cosine anglesinto sum to product formula.
Further simplify.
The solutions in the interval
The solutions in the interval
The solution set is
Verify the solutions using graphical utility:
Draw the graph for the equation
Figure(1)
From the above, it is clear that
Therefore, the solution of the equation
Chapter 5 Solutions
Precalculus with Limits: A Graphing Approach
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