Solve the given differential equation.y''' + 3y'' + 25y' + 75y = 0
A. y = C1e-4x + (C2 + C3x)e-7x
B. y = C1e-4x + C2e7x + C3e-7x
C. y = C1e-4x + (C2 cos 7x + C3 sin 7x)
D. y =(C1 + C2x)e-4x + C3e7x
Answer: C
Mathematics
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.
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Determine whether the geometric series converges or diverges.
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