The god is 3 your welcome
To take advantage of the characteristic solutions and , you can try the method of variation of parameters, where we look for a solution of the form
with the condition that
Then
Substituting into the ODE gives
Since
the above reduces to
and form a linear system that we can solve for using Cramer's rule:
where is the Wronskian determinant of the fundamental system and is the same determinant, but with the -th column replaced with .
So we have
Then the particular solution is
giving the general solution to the ODE,
All the points listed below are parallel to each other, meaning that both triangles are equivalent to each other.
The answer to the question is b
The correct answer is 8 because 8+4 equals 12