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**Pi=** · 10-29-2011

Alright, I have homework I need finished by tommorrow. Here is a problem or two.
7. Expressed in terms of n what is the sum of all the terms in the arithmetic sequence (n-7), (n-2), . . . . (n+428)?
8. If x = a/b, find (a+b)/(a-b) in terms of x.

10-29-2011	#1
Pi= Join Date: May 2011 Posts: 86	Urgent, Help Alright, I have homework I need finished by tommorrow. Here is a problem or two. 7. Expressed in terms of n what is the sum of all the terms in the arithmetic sequence (n-7), (n-2), . . . . (n+428)? 8. If x = a/b, find (a+b)/(a-b) in terms of x. __________________ Inception can go beyond just a dream.