Respond to this Question
Similar Questions

Sequences
For any sequence of real numbers A = {A_1, A_2, A_3, ... }, define *A to be the sequence {A_2  A_1, A_3  A_2, A_4  A_3,..}. Suppose that all of the terms of the sequence *(*A) are 1, and that A_19 = A_92 = 0. Find A_1. Help me,
asked by Joebelle on January 25, 2015 
Algebra
the following problem refers to a geometric sequence: Find S_10 for 1, 1/3, 1/9 r=1/3/1=1/3 a_1=1 a_2=1/3 a_n=a_1*r^n1 a_n=1*1/3^n1 s_n= Help me.
asked by Keonn'a on September 28, 2018 
Algebra
Find the sum of the infinite geometric series. 4+1+1/4+.... Sum=a_1/1r 4/14=? r=a_1/a_2 r=4/1=4 a_1=4 I am stuck?Please help me.
asked by Keonn'a on September 28, 2018 
math
an = 3 a_{n1}  5 a_{n2}  4 a_{n3} and a_4 = 42, a_5 = 147, and a_6 = 219. Find a_1, a_2, and a_3.
asked by Denzel on November 29, 2013 
math
The 3rd term in an arithmetic sequence is 12, the 7th term is 24, a) How many common differences are there between a_3 and a_7? b) What is the common difference of the sequence? c) What is the first term in the sequence? a_1 d)
asked by edwin on May 21, 2014 
Algebra: please help me.
The following problem refers to an arithmetic sequence. if a_8=9 and a_16=17, Find the term a_1, the common difference d, and then find a_30. a_n=a_1+(n1)*d
asked by Keonn'a on October 2, 2018 
Algebra
What the general term a_n for the geometric sequence a_1= 5 and a_2= 15
asked by Liz on September 2, 2012 
Algebra
The following problem refers to a geometric sequence: If a_1=2 and r=1.Find s_28. This the formula was given by my instructor: S_n=a_1(1r^n)/1r =2(1(1)^28)/1(1) =2*2/2 =4/2 =2 where did I go wrong? Can You help me
asked by Keonn'a on September 28, 2018 
Advanced Algebra
The polynomial function defined by f(x) = 1 − x + x^2 − x^3 + ... + x^16 − x^17 may be written in the form f(y) = a_0 + a_1 y + a_2 y^2 + ... + a_16 y^16 + a_17 y^17, where y = x + 1 and a_i s are constants. Find a_2.
asked by Frank on November 15, 2014 
Algebra
The following problem refers to a geometric sequence. If a_1=2 and r=1. Find a_20. a_n=a_1*r^(n1) a_20=2*1^(201) I am stuck now please help me.
asked by Keonn'a on September 27, 2018