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Concept explainers
(a)
The exact value of
(a)
![Check Mark](/static/check-mark.png)
Answer to Problem 10CR
Solution:
The exact value of
Explanation of Solution
Given information:
Explanation:
To find
Since
As
Let
The
Plugging
Since
Thus,
Therefore, the exact value of
(b)
The exact value of
(b)
![Check Mark](/static/check-mark.png)
Answer to Problem 10CR
Solution:
The exact value of
Explanation of Solution
Given information:
Explanation:
Since,
As
The
Let
The
Plugging
Then
Therefore, the exact value of
(c)
To calculate: The exact value of
(c)
![Check Mark](/static/check-mark.png)
Answer to Problem 10CR
Solution:
The exact value of
Explanation of Solution
Given information:
Formula used:
The double angel formula:
Calculation:
By using double angel formula,
Thus,
Therefore, the exact value of
(d)
To calculate: The exact value of
(d)
![Check Mark](/static/check-mark.png)
Answer to Problem 10CR
Solution:
The exact value of
Explanation of Solution
Given information:
Formula used:
The cosine sum formula:
Calculation:
As
From part(a)
By using the formula,
Therefore, the exact value of
(e)
To calculate: The exact value of
(e)
![Check Mark](/static/check-mark.png)
Answer to Problem 10CR
Solution:
The exact value of
Explanation of Solution
Given information:
Formula used:
The half angel formula:
Calculation:
By using the half angel formula:
As
Since the value of
Thus,
Therefore, the exact value of
Chapter 7 Solutions
Precalculus
Additional Math Textbook Solutions
Calculus & Its Applications (14th Edition)
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