It means to find the generic expression for any term, not just for one specific term.
For example, in the sequence 1, 4, 9, 16, 25... it should be clear that these are square numbers, which you can write as 12, 22, 32, etc. The nth. term is n2, meaning that for any number "n", term number n is n2.
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It is not possible to find the nth term from the given information.
If you mean: 3, 4, 5, 6 and 7 then nth term = n+2
35 * * * * * That is the next term. The question, however, is about the nth term. And that is 6*n - 1
Find the formula of it.
Well, isn't that just a lovely pattern we have here? Each term is increasing by 4, isn't that delightful? So, if we want to find the nth term, we can use the formula: nth term = first term + (n-1) * common difference. Just like painting a happy little tree, we can plug in the values and find the nth term with ease.