Solve the given differential equation. (The form of yp is given.)36D2y - y = sin x (Let yp = A sin x + B cos x.)
A. y = c1ex/6 + c2e-x/6 - 
sin x + 
cos x
B. y = c1ex/6 + c2e-x/6 - 
sin x
C. y = c1ex/6 + c2e-x/6 + 
sin x
D. y = c1ex/6 + c2e-x/6 - 
cos x
Answer: B
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Simplify.
A. 
B. 
C. 
D. 
Solve the problem.Suppose that one of the losing candidates is to be deleted from the given voter profile. Which choices would result in the plurality method violating the independence of irrelevant alternatives criterion in a second election? 
A. c and d B. d only C. a, c, and d D. a and d
Solve the problem.During a cold front in Alaska the temperature dropped 5°F each hour for 3 hours. Express the total drop in temperature as an integer.
A. -5°F B. -15°F C. 15°F D. -10°F
Add or subtract as indicated. Express the answer as a single polynomial in standard form.(7x6 - 5x3 - 6) - (13x3 + 9x6 + 8)
A. -2x6 + 4x3 + 2 B. -2x6 - 18x3 + 2 C. -2x6 - 18x3 - 14 D. -34x9