the nth term of a sequence is 10n-8. work out the first three terms
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The first three terms of the sequence are 2, 12 and 22.
Step-by-step explanation:
nth term of a sequence is 10n - 8
Therefore, the first term is (when n=1) = 10x1 - 8 = 10 - 8 = 2
The second term is (when n=2) = 10x2 - 8 = 20 - 8 = 12
The third term is (when n=3) = 10x3 - 8 = 30 - 8 = 22
Therefore, the first three terms are 2, 12 and 22.
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