Question 972271: The number of the sequence is 17, if the second one is 3, what
is the first number?
Answer by rothauserc(4718) (Show Source):
You can put this solution on YOUR website! number of the sequence is 17?
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arithmetic sequence
xn = a + d(n-1), where a is first number in sequence, d is common difference, xn is the nth term
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geometric sequence
xn = ar^(n-1), where a is the first term, r is the common ratio, xn is the nth term
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