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(a)
To calculate:The exact value of function
(a)
![Check Mark](/static/check-mark.png)
Answer to Problem 118E
The value
Explanation of Solution
Given:
The functions
Formula Used:
Use the property
Use another property
Calculation:
Substitute the values of
Substitute
By the trigonometric identity
Substitute
And,
Therefore,
By the trigonometric property
Substitute
And,
Now substitute
Now substitute the values in the formula.
Therefore the value
(b)
To calculate:The exact value of function
(b)
![Check Mark](/static/check-mark.png)
Answer to Problem 118E
The value
Explanation of Solution
Given:
The functions
Formula Used:
Use the property
Use another property
Use another property
Calculation:
Substitute the values of
Substitute
By the trigonometric identity
Substitute the values in above equation.
By the trigonometric property
Substitute
And,
Now substitute
Now substitute the values in the formula.
Therefore the value
(c)
To calculate:The exact value of function
(c)
![Check Mark](/static/check-mark.png)
Answer to Problem 118E
The value
Explanation of Solution
Given:
The functions
Formula Used:
Use the value of
Use the property
Calculation:
Substitute the value
Substitute
By the trigonometric identity
Therefore,
By the trigonometric property
Substitute
Now substitute
Now substitute
Therefore the value
(d)
To calculate:The exact value of function
(d)
![Check Mark](/static/check-mark.png)
Answer to Problem 118E
The value
Explanation of Solution
Given:
The functions
Formula Used:
Use the property
Use another property
Use another property
Calculation:
Substitute the value
Substitute
By the trigonometric identity
Therefore,
By the trigonometric property
Substitute
And,
Now substitute
Now substitute the above values in the formula.
Therefore the value
(e)
To calculate:The exact value of function
(e)
![Check Mark](/static/check-mark.png)
Answer to Problem 118E
The value
Explanation of Solution
Given:
The functions
Formula Used:
Firstly calculate the angle
Use the identity
Calculation:
As
Substitute the value
By the trigonometric identity
Therefore,
By the trigonometric property
Substitute
By the trigonometric property
Substitute
Now substitute
Therefore,
Therefore value
(f)
To calculate:The exact value of function
(f)
![Check Mark](/static/check-mark.png)
Answer to Problem 118E
The value
Explanation of Solution
Given:
The functions
Formula Used:
Use the property
Use another property
Calculation:
As
Therefore,
By the trigonometric property
Substitute
Now substitute
Now substitute
Therefore the value of
Chapter 4 Solutions
Precalculus with Limits: A Graphing Approach
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