Question

Solve using Variation of Parameter: y''-y=cosh(x)

Answer 1

\[y_c=c_1e^x+c_2e^{-x}\]

Answer 2

W=-2

Answer 3

\[w_1=-e^{-x}cosh(x)\]
\[w_2=e^xcosh(x)\]

Answer 4

is that wronskian right?
I think it's 1, no?

Answer 5

wronkskian of

\[