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Consider the sequence

1,4,9,16,...1,4,9,16,...

What expression could you use to find the nnth term?

 May 18, 2017
 #1
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an=n2

For example: a1=12 and 12 is 1

                      a2=22 and 22 is 4

                      a3=32 and 32‚Äč is 9

 May 18, 2017

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