Determine a general formula (or formulas) for the solution to the equation.10 cos ? - 6
= 8 cos ?- 5
A. ? = 
+ n? or ? = 
+ n?
B. ? = 
+ 2n? or ? = 
+ 2n?
C. ? = 
+ 2n? or ? = 
+ 2n?
D. ? = 
+ n? or ? = 
+ n?
Answer: B
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Solve the problem.Find an equation of the circle that passes through the points (4, 6), (-6, 2), and (1, -3).
A. 
2 + 
2 = 
B. 
2 + 
2 = 
C. 
2 + 
2 = 
D. 
2 + 
2 = 
Use a truth table to determine whether the argument is valid.p ? q
~q
A. Valid B. Invalid
Prove the limit statement
= 16
What will be an ideal response?
Find the equation in standard form of the parabola described.Find the equations of the two parabolas in standard form that have a vertical axis of symmetry and a focus at the point (0, 10), and that pass through the origin.
A. x2 = 20y and x2 = -20y B. y2 = 40x and y2 = -40x C. x2 = 40y and x2 = -40y D. y2 = 20x and y2 = -20x