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# Find the Roots of the Characteristic Equation: y'' - y = 0

MVCALC-YWE4LU

Find the roots of the characteristic equation for the differential equation:

$$y'' - y = 0$$

A

$r = 1$ and $r = -1$

B

double root $r = -1$

C

double root $r = 1$

D

$r = -i$ and $r = i$

E

None of the Above