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My differential equations professor asked such a question I tried for a long time to solve it, but I can't get the result.
(D+5)x+(D+7)y=e^t
(2D+1)x+(3D+1)y=2e^t
The problem had to be solved by Cramer and elimination method.
I solved it with the elimination method, but Cramer's method forced me ...
In mathematics, an integro-differential equation is an equation that involves both integrals and derivatives of a function.
== General first order linear equations ==
The general first-order, linear (only with respect to the term involving derivative) integro-differential equation is of the form
d
d
x
u
(
x
)
+
∫
x
0...
