Solve the given differential equation.y(4) - 21y'' - 100y = 0
A. y = C1e2x + C2e-2x + C3 cos 5x + C4 sin 5x
B. y = C1e5x + C2e-5x + (C3 + C4x)e2x
C. y = C1e5x + C2e-5x + C3 cos 2x + C4 sin 2x
D. y = (C1 + C2x)e-5x + C3 cos 2x + C4 sin 2x
Answer: C
Mathematics
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