Thursday

November 27, 2014

November 27, 2014

Posted by **relle** on Tuesday, April 24, 2007 at 6:39pm.

the way I am reading the question you have i is going from 2 to n

so there will be n-1 terms

using i = 2,3,4,..,n

I get 2^(2n-2) + 2^(2n-2) + ...

Sum of n terms of a geometric series is

a(1 - r^n)/(1-r)

so a= 2^(2n-2), r = 2^(-1) and the number of terms is n-1

and the sum is

2^(2n-2)[1 - 2^(-1)] / 1-2^(-1))

.

.

.

=2^(n-1)(2^n - 1)

**Answer this Question**

**Related Questions**

AD Analysis (URGENT) - I have to do an ad analysis of alcohol. And I've decided ...

Calc 2, Series/Sequences - Explain clearly in detail the difference of the ...

Pre-Calculus - I do not know how to work this problem: Find the area of the ...

Sociology - I am having some trouble with a sociology assignment concerning ...

Chemistry - 12. In a calorimeter, 10 g of ice absorbs heat with an enthalpy of ...

english - I'm having trouble understanding how to answer this question about a ...

reading and writing - I am having a hard time getting started. I need to compare...

Physics - You are on an airplane traveling 30° south of due west at 130 m/s with...

math- mean value theorem - Hi I am having some trouble with these few quetions I...

Calculus - Could someone please help me on this question where you find the ...