00:01
In this question for the subpart a, we have been given with d2y divided by dx2 -3dy dx plus 2y is equal to 0.
00:16
So here we are asked to find out the complementary function for this differentiable equation.
00:22
So its auxiliary equation is given by m2 -3m plus 2 is equal to 0.
00:31
Therefore, m -2 into m -1 is equal to 0.
00:38
M value will be 2 ,1.
00:41
So for this the complementary function is given by yc of x is equal to c1e power 2x plus c2e power x.
00:53
Therefore, this is the required complementary function.
00:58
Now for the subpart b, we have been given with d2y divided by dx2 -3dy dx plus 2y is equal to 4x -5.
01:13
Here we are asked to find out the particular integral for this differentiable equation.
01:19
Let it be equation number 1.
01:21
And let assume that the particular integral of the equation 1 will be yp of x is equal to ax plus b.
01:34
Then d by dx of yp of x is equal to a and d2 divided by dx2 of yp of x is equal to 0.
01:49
Then the equation 1 becomes d2 divided by dx2 of yp of x minus 3 into d by dx of yp of x plus 2 into yp of x is equal to 4x -5.
02:11
Then its value will be minus 3a plus 2b plus 2ax is equal to 4x -5...