Chapter 9 / intro to series Flashcards
1
Q
Finite Geometric Series Formula
A
Sn = [a(1-x^n)/(1-x)]
2
Q
general form of a power series
A
Sum of Cn(x-a)^n
3
Q
Why do you apply the ratio test when dealing with power series?
A
In order to find the radius of convergence. Ratio test gives us L, whose absolute value must be less than 1.
4
Q
Binomial Series: what is the fourth term?
A
(p(p-1)(p-2)/3!)x^3