![]() In this lesson, we will look specifically at finding the n th term for an arithmetic or linear sequence. To find the tenth term we substitute n = 10 into the nth term.īelow are a few examples of different types of sequences and their nth term formula.To find the third term we substitute n = 3 into the nth term.To find the second term we substitute n = 2 into the nth term.To find the first term we substitute n = 1 into the nth term.To find the 20th term we would follow the formula for the sequence but substitute 20 instead of ‘ n‘ to find the 50th term we would substitute 50 instead of n. We can make a sequence using the nth term by substituting different values for the term number( n). ![]() The ‘n’ stands for its number in the sequence. For example the first term has n=1, the second term has n=2, the 10th term has n=10 and so on. If you’d like to ask for any more detail, or you’re not sure about anything, please do ask a question in the comments section.The nth term refers to the position of a term in a sequence. Please note that these videos deal with quadratics – here’s a link through to the post on linear sequences. Reading this text is quite difficult to understand – it’s much easier when you’ve watched the videos! Use all this information and you should be able to work through. The first number of the sequence is a + b + c.The difference between the first two numbers of the sequence is 3a + b. ![]()
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