jasheemstaley123456 jasheemstaley123456

10-09-2019
Mathematics

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what is the explicit formula for this gemoetric sequence 8 4 2 1

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sqdancefan sqdancefan

10-09-2019

Answer:

an = 8·(1/2)^(n-1)

Step-by-step explanation:

The first value is a1 = 8 and the common ratio is r = 1/2, so the formula is ...

an = a1·r^(n-1)

an = 8·(1/2)^(n-1)

an = 2^(4-n) . . . . . . more compact version

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