respresenting arithmetic sequences

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An arithmetic sequence is given

3/4,3,21/4,15/2...

idenify the explicit formula for this squence

shaniab29544 Dec 9, 2014

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Best Answer

+129852

+10

The common difference is just ( 2 + 1/4 ) = ( 2.25)

So, the "nth" term is given by

a_n = a₁ + 2.25(n-1)

a_n = 3/4 + 2.25(n-1) where n is an integer > 1

CPhill Dec 9, 2014

2⁺⁰ Answers

+129852

+10

Best Answer

The common difference is just ( 2 + 1/4 ) = ( 2.25)

So, the "nth" term is given by

a_n = a₁ + 2.25(n-1)

a_n = 3/4 + 2.25(n-1) where n is an integer > 1

CPhill Dec 9, 2014

+961

+5

Thank u

shaniab29544 Dec 9, 2014

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