2. (20 points) Solve the differential equation
with initial condition x(0) =x'(0) = 0, x"(0) = 1.
阿摩線上測驗
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阿摩線上測驗
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2. (20 points) Solve the differential equation
with initial condition x(0) =x'(0) = 0, x"(0) = 1.