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Example Questions
Example Question #26 : Quadratic Formula With Trigonometry
In the interval , what values of x satisfy the following equation?
Possible Answers:
Correct answer:
Explanation:
We start by rewriting the term on the right hand side in terms of .
We then move everything to the left hand side of the equation and cancel.
Apply the quadratic formula:
So . Using the unit circle, the two values of that yield this are and .
Dejuan
Certified Tutor
Certified Tutor
University of Illinois at Urbana-Champaign, Bachelor of Science, Electrical Engineering.
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