00:01
Hello, welcome to number one.
00:02
We are going to cover this question relating to second order differential equation, non -homogeneous differential equation.
00:09
Right, so with regard to question 1 .1, we have a differential equation, and they add to find the general solution of the non -homogeneous differential equation.
00:18
The general solution is just the homogeneous solution.
00:23
Or in other words, you just consider on the left -hand side is equal to 0.
00:27
And this one is not hard to solve, right? you just need to find the characteristic.
00:30
Characteristic polynomial, right? so it's going to be two plus a matter 2 i, and therefore you got two solution, cosine and sine of 2t, right? so your general solution i denoted by ygt equal to c1 times cosine of 2t plus c2 times side of 2t.
00:53
Okay, so this is the general solution...