What is the solution for (d^2y)/(dx^2)=-y ?

The solution for (d^2y)/(dx^2)=-y is y=c_{1}cos(x)+c_{2}sin(x)

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(d^2y)/(dx^2)=-y

\frac{d ^{2} y}{d x ^{2}} = - y

y = c_{1} cos (x) + c_{2} sin (x)

Solution steps

\frac{d ^{2} y}{d x ^{2}} = - y

Solve linear ODE:

y = c_{1} cos (x) + c_{2} sin (x)

y = c_{1} cos (x) + c_{2} sin (x)

f (x) = x^{2} (3 - x)^{2}

x \to - 1 lim (∣ x ∣ - 3)

\int \frac{8}{x ( x + 2 ) ^{3}} d x

\frac{d}{d x} (x ln (2 x))

x \to 2 + lim (x^{2})

What is the solution for (d^2y)/(dx^2)=-y ?
The solution for (d^2y)/(dx^2)=-y is y=c_{1}cos(x)+c_{2}sin(x)