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## Sequence Answers

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This is an a word problem but I cannot find the pattern of the problem. I'm also having trouble finding the pattern and who much it's increasing.

9. The first two terms of an infinite geometric sequence, in order, are 2log2x, log2x, where x > 0. a. Find r. b. Show that the sum of the infinite sequence is 4log2x. c. The first...

Thats pretty much it.

I know that the n-th term of a geometric sequence (with initial value 'a' and a common ratio 'r') can be calculated as: an=ar(n-1). How do you calculate the nth term however, if 'r' itself is dependent...

6. Consider a geometric sequence where the first term is 768 and the second term is 576. Find the least value of n such that the nth term of the sequence is less than 7.

7a. The first three terms of an arithmetic sequence are 36, 40, 44, ...  (i) Write down the value of d.  (ii) Find u8 . 7b.  (i) Show that Sn = 2n2 +...

An arithmetic sequence has a as the first term and 2d as the common difference. The sum of the first 50 terms is T. Another sequence, with first term a+d, and common difference 2d, is combined...

Find that serial and give details to me