Given an arithmetic sequence with the first term a 1 and the common difference d the n th or general term is given by a n a 1 n 1 d. This tutorial will show you how.

Finding Real Nth Roots And Rational Exponents Exponents Nth

Trying to find the value of a certain term in a geometric sequence.

How to write an equation for the nth term. Got an arithmetic sequence. The common ratio is so r the first term is 72 so al a1 72. How to find the general formula for the n th term of an arithmetic sequence using any two terms.

Find the common difference. Then use the equation for the nth term in an arithmetic sequence instead. Then use that rule to find the value of each term you want.

A use the formula a n a 1 n 1 d to set up two equations that use the given. You have to be creative in finding the common difference for these types of problems. Find the 27 th term of the arithmetic sequence 5 8 11 54.

Use the formula for finding the nth term in a geometric sequence to write a rule. Determine if a sequence is arithmetic or geometric. Use the formula an ar n 1 to write an equation for the nth term of the geometric series.

N th term of an arithmetic or geometric sequence. Finding the n th term of an arithmetic sequence. Trying to find a later term in that sequence.

The main purpose of this calculator is to find expression for the n th term of a given sequence. This tutorial takes you through it step by step. The calculator will generate all the work with detailed explanation.

Don t want to keep adding the common difference to each term until you get to the one you want. Also it can identify if the sequence is arithmetic or geometric.