Pre-Calculus, 9th edition
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13
| PAGE: 446 | SET: Exercises | PROBLEM: 13 |
Please look in your text book for this problem Statement
The expression is 
.
Let 
, take the angle 
in the interval 
.
(Since )
Definition of 
.
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Observe the table, 
possible if 
.
Therefore, the value of 
is .
The value of 
is .
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