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Whitepunk [10]
3 years ago
7

For the following geometric sequence, find the recursive formula. {-80, 20, -5, ...}

Mathematics
1 answer:
skad [1K]3 years ago
3 0
For the<span> geometric sequence, it has two forms of formula

</span>
<span>We are interested in the recursive formula now

</span>
<span> {-80, 20, -5, ...}

The common ratio is (20/-80)=(-5/20)=-1/4=-0.25

So our r</span><span>ecursive formula would bea_n=a_{n-1}*(-0.25)=a_{n-1}*(- \frac{1}{4} )


</span>

I hope that helps!



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