Find the standard form of the equation of a circle that satisfies the given conditions.Center at (-5, 0); radius 2
A. x2 + (y - 5)2 = 2
B. (x - 5)2 + y2 = 4
C. x2 + (y + 5)2 = 2
D. (x + 5)2 + y2 = 4
Answer: D
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Express the product as a sum containing only sines or cosines.cos(3?) cos(6?)
A. 
[cos(9?) - sin(3?)]
B. 
[cos(3?) + cos(9?)]
C. 
[cos(9?) - cos(3?)]
D. cos2(12?2)
Solve the equation. Write complex solutions in standard form.7x2 + 9x + 3 = 0
A. - 
± i
B. 
± i
C. - 
± 
D. 
± 
Determine the number of solutions of the system. State whether the system is consistent or inconsistent. For a system that is consistent, state whether the equations are dependent or independent. State the solution of the system.
A. infinitely many solutions; consistent; dependent B. no solution; inconsistent C. one solution; consistent; independent; (0, 2) D. one solution; consistent; independent; (2, 0)
Complete the identity.2 tan ? - (1 + tan ?)2 = ?
A. 0 B. -sec2 ? C. 1 - sin ? D. 1