Question

Let G"(z) =4/z^3 - 4/z^6 with G(1)=0.
Evaluate G(3).

G(3)= _________________

Answer 1

G" = 4z^-3 - 4z^-6
G' = -2z^-2 +4/5 z^-5 + C
G = 2/z - 1/5 z^-4 + Cz + D
G(1)=0, so
2 - 1/5 + C + D = 0
C+D = -9/5
G(3) = 2/3 - 1/405 + 3C + D
Unless you have some other constraints, that's as far as we can go.

Answer 2

can you convert it to a decimal

Answer 3

excuse me? You're in college, right?
Taking calculus, right?
you at least own a calculator, right?
or, you can use a computer, right?

and unless you have another constraint, such as G'(1)=2 or something, there is no way to get actual values for C and D.