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Q: What is the nth term for the expression -1 3 -5 7 -9 11 -13 15?

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A simple answer, based on a linear rule is U(n) = 5n - 23 for n = 1, 2, 3, ...

The expression is -9 + 13 + 12

13

The rule that generates the sequence is Un = 9 + 2n (for n = 1, 2, ...

205. it is not that hard to figure out. :P

Related questions

It is: 2n+9

The nth term is: 2n+7 and so the next number will be 19

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The nth term is 6n+1 and so the next term will be 31

The nth term is 3n+7 and so the next number will be 22

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The nth term is 25-4n and so the next term will be 5

The sequence is simply achieved by adding 2 to each value9+2=1111+2=1313+2=1515+2=1717+2=1919+2=21so the nth term can be calculatedThe value of the nth term = the value of (nth-1 term) +2.

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