Can someone please explain how to do this "method of differences".
Heres a question
(i know how to do the first part, but i just thought id put it there because its probably needed for part b)
1(a) Given that F(r) = (r-1)r^2 , show that,
f(r+1) - f(r) = r(3r+1)
(b) Use the method of differences to find the value of,
r=50 (sigma) 99 r(3r+1)
thanks for the help!
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Summation of series by the method of differences watch
- Thread Starter
- 22-07-2009 15:07
- 22-07-2009 15:11
Write the terms out making the substitution. Some terms should cancel out. What terms are left?