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April 19, 2015

April 19, 2015

Posted by **bahle** on Thursday, January 23, 2014 at 2:58am.

- maths -
**Damon**, Thursday, January 23, 2014 at 3:10am1 a

2 ar

3 ar^2

4 ar^3

5 ar^4

6 ar^5

n ar^(n-1)

so

ar^2 = 6

ar^5 = 3/32

so

a = 6/r^2

(6/r^2)r^5 = 3/32

6/r^3 = 3/32

r^3 = 32*2 = 64

r = 4

then

a = 6/16 = 3/4

so

Tn = (3/4)4^(n-1)

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