2)substitute for x:
now we look for the constant difference(d):
Maths - 1..The first 2 terms of a geometric progression are the same as the ...
Can someone help me?! - The 1st, 5th and 13th terms of an arithmetic sequence ...
Algebra - Determine whether each sequence is arithmetic or geometric. Find the ...
Maths - An arithmetic and a geometric sequence have the same first terms.(2).......
Math - The 13th termof an arithmetic sequence is 61 and the 20th term of the ...
Math for Educators - The first difference of a sequence is 8, 12, 16, 20,... The...
Maths - The first term of an arithmetic sequence is 2. The first, third and ...
math - Determine whether each sequence is arithmetic or geometric. Find the next...
sequences and series - how do i solve the sum of the first two terms of an ...
math sequences and series - how do i solve the sum of the first two terms of an ...