- #1
drklrdbill
- 9
- 0
The problem I have is that I have to find a function from the power series:
f(x)=sigma (from n=0 to infinite) (cn)x^n ... where in cn the n is subscript
and then the statement is given cn+4=cn ... where again n+4 and n are subscripts.
then they tell you to suppose a=c0, b=c1, c=c2, d=c3, and you have to write an equation for f(x) using just a,b,c,d. Now I think i understand when n=4, c4=c0, so then a=c4, so it would look something like this:
f(x)=a+bx^1+cx^2+dx^3+ax^4+bx^5+... but is there anyway to get a definite answer to this series?
Any help would be appreciated. thank you very much.
bill
f(x)=sigma (from n=0 to infinite) (cn)x^n ... where in cn the n is subscript
and then the statement is given cn+4=cn ... where again n+4 and n are subscripts.
then they tell you to suppose a=c0, b=c1, c=c2, d=c3, and you have to write an equation for f(x) using just a,b,c,d. Now I think i understand when n=4, c4=c0, so then a=c4, so it would look something like this:
f(x)=a+bx^1+cx^2+dx^3+ax^4+bx^5+... but is there anyway to get a definite answer to this series?
Any help would be appreciated. thank you very much.
bill