(a)
To find: Explain why
Explanation is given
Given information:
The given
Calculation:
In the given diagram the
By the trigonometric formula:
Substitute the known values gives:
Now substitute the value of
(b)
To find: Show
Given information:
The given equation is :
Calculation:
Square on both sides:
Apply the identity
This is the required result.
(c)
To find: Show
Given information:
The given equation is :
Calculation:
From part (b)
Apply the formula
Now the equation
This is the required result.
Chapter 10 Solutions
Holt Mcdougal Larson Algebra 2: Student Edition 2012
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