- #1
joker2014
- 21
- 0
Member warned about posting with no effort
Homework Statement
substitute the given power series below into ODE y'' -4y=0 to verify it is a solution
Homework Equations
y=∑ 2n xn / n!
n=0
y''-4y=0
The Attempt at a Solution
I have absolutely no idea how start.