Here are the first five terms of a sequence. 4 11 22 37 56 Find an expression, in terms of n, for the nth term of this sequence. (3 marks) nth term =
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Find the differences between consecutive terms: 11 - 4 = 7 22 - 11 = 11 37 - 22 = 15 56 - 37 = 19 Show more…
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