- #1

darkspym7

- 10

- 0

## Homework Statement

Solve the inhomogeneous equation y'' + 4y = 4 with y(0)=0 and y'(0)=0.

## The Attempt at a Solution

let Y(t) = A, A being some constant

Y'(t) = 0

Y''(t) = 0

Y''(t)+4Y(t)=4

=> 4Y(t)=4

=> 4A=4

=> A=1

=> y(t)=1

But y(0)=0, so that cannot be correct.

Any tips?