Solve the differential equation.y'' + 14y' + 29y = 0
A. y = e-7x(C1 cos 2
x + C2 sin 2
x )
B. y = e7x(C1e 2
x + C2e- 2
x )
C. y = e-7x(C1e 2
x + C2e- 2
x )
D. y = e-2
x(C1e 7x + C2e- 7x )
Answer: C
Mathematics
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A. (0, 4)
B. ?
C. 
D. {(x, y)|3x + y = 4}
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A. 3, 
, 
, 
, 
B. 
, 9, 
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