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September 20, 2014

September 20, 2014

Posted by **alejandro** on Wednesday, August 8, 2012 at 6:44pm.

1)A sequence has a first term of 24 and every other term is one half of the previous term.

a)Write the first four terms of the sequence.

b)Find a recursive formula that defines this sequence.

c)Find an explicit formula that defines this sequence. This will be discussed later, but you could use the geometric form tn=ar(n-1) where a is the first term, r is the common ratio and n is the number of terms.

d)Find t6 and t8.

- math30 -
**bobpursley**, Wednesday, August 8, 2012 at 7:14pmEither you are lost, or are looking for someone to give you answers. I will assume the former for now:

a) 24, 12, 6,3, ...

b) a_{n}=a_{n-1}*1/2

c. tn=24*(1/2)^{n}

t6= 24*(1/2)^6=24/64

- math30 -
**alejandro**, Thursday, August 9, 2012 at 2:09pmI am looking for help to find out if my answer is right or not!

Thanks any way!!

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