Algebra and Trigonometry, 8th edition
(a)
The equation is and the value of .
Consider .
Substitute in .
.
Thus, the value of is a solution of .
(b)
The equation is and the value of .
Consider .
Substitute in .
Since the angle lies in the fourth quadrant, secant function is positive and even.
.
Thus, the value of is a solution of .
(a) The value of is a solution of .
(b) The value of is a solution of .
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