Question

If an =3-n^2 then find a5

Answer 1

let n=5

a5 = 3-25=-22
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Answer 2

$if \: an = 3 - n ^{2} \\ find \: a5 \\ an = 3 - n ^{2} \\ a5 = 3 - (5)^{2} \\ \: \: \: \: \: \: = 3 - 25 \\ a5 = - 22$

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