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Explicit formula for 20, 4, 4/5, 4/25, . . .

User Arg Geo
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1 vote

Answer:

The explicit formula is An=A1*r^n-1

Your A(1) is the first term that would be 20, because 20 is the first term in your pattern

r is your common ratio which in this case would be 5, because you divide each number by 5.

Now you just plug those numbers in.

A(n)=20*5^n-1

Hope this helps ;)

User Lingzhi Zhang
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