To evaluate: the given expression.
Given information:
The expression:
Definition Used:
Co-terminal Angles:
An angle co-terminal with a given angle can be found by adding or subtracting multiples of
Reference angle relationships
Let
Quadrant II
Quadrant III
Quadrant IV
Property Used:
Explanation:
First find the co-terminal angle to
So,
Next step is to find the corresponding reference angle
So,
Now, it is known that the sine function is negative in the third quadrant. So,
Chapter 9 Solutions
Holt Mcdougal Larson Algebra 2: Student Edition 2012
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