1.

Which of the differential equation satisfy y = a ex + b e-x as a solution?

A. \(\frac{{{\text{d}}^{2}}\text{y}}{\text{d}{{\text{x}}^{2}}}=\frac{\text{dy}}{\text{dx}}\)
B. \(\frac{{{\text{d}}^{2}}\text{y}}{\text{d}{{\text{x}}^{2}}}=\text{y}\)
C. \(\frac{{{\text{d}}^{3}}\text{y}}{\text{d}{{\text{x}}^{3}}}=\frac{\text{dy}}{\text{dx}}\)
D. \(\frac{{{\text{d}}^{2}}\text{y}}{\text{d}{{\text{x}}^{2}}}=\frac{\text{dy}}{\text{dx}}+\text{y}\)
Answer» C. \(\frac{{{\text{d}}^{3}}\text{y}}{\text{d}{{\text{x}}^{3}}}=\frac{\text{dy}}{\text{dx}}\)


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