Computing...

Input:

{y\'\'(x) + y(x) = 0, y(0) = 2, y\'(0) = 1}


ODE classification:

second-order linear ordinary differential equation


Alternate form:

{y\'\'(x) = -y(x), y(0) = 2, y\'(0) = 1}


Differential equation solution:

y(x) = sin(x) + 2 cos(x)

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