Which of the following differential equations has y=c1ex+c2e−x as th – InterviewSolution

1.	Which of the following differential equations has y=c1ex+c2e−x as the general solution? (a) d2ydx2+y=0 (b) d2ydx2−y=0 (c) d2ydx2+1=0 (d) d2ydx2−1=0
Answer» Which of the following differential equations has $y = c_{1} e^{x} + c_{2} e^{- x}$ as the general solution? (a) $\frac{d^{2} y}{d x^{2}} + y = 0$ (b) $\frac{d^{2} y}{d x^{2}} - y = 0$ (c) $\frac{d^{2} y}{d x^{2}} + 1 = 0$ (d) $\frac{d^{2} y}{d x^{2}} - 1 = 0$

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