Wednesday
April 23, 2014

Homework Help: sum geometric series

Posted by david on Monday, April 9, 2007 at 5:20pm.

what is the sum of geometric infinite series 3/2+ 9/16+ 27/128+ 81/1024=....

i know the formula is S=a/(1-r)

my teacher, he usually transforms into a formula of the sum series and finds out a and r.but i don't how to do that.

the pattern i saw is 3/2 + 3^2/2^4 + 3^3/2^7+ 3^4/2^10+....

a= 3/2 r= 3/8

3/2 + 3/2*3/8 + 3/2*3/8*3/8 + ....

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

algebra - Can someone please help me with this problem? Thanks! Evaluate the ...
algebra - 1)Find a1 in a geometric series for which Sn=300,r=-3,and n=4 a.15 b....
algebra - 1)Find a1 in a geometric series for which Sn=300,r=-3,and n=4 a.15 b....
algebra - 1)Find a1 in a geometric series for which Sn=300,r=-3,and n=4 a.15 b....
algebra(check) - 1)Find a1 in a geometric series for which Sn=300,r=-3,and n=4 a...
CALC II - Determine the convergence of the following series using the nth-...
Math....Please help I have a deadline for tonight! - Use the geometric sequence ...
AGL 2 (Geometric Series) - Is their a formula for finding the Sum for Geometric ...
calculus - Consider the infinite series of the form: (+/-)3(+/-)1(+/-)(1/3...
calculus - Consider the infinite series of the form: (+/-)3(+/-)1(+/-)(1/3...

Search
Members