Question

If a, = 2n²+5 then find a3

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Answer 1

Answer:

hii mate hope my answer finds u in the pink of your health---

Step-by-step explanation:

given,an=2n^2+5

if n=1 then a1=2+5=7.

if n=3 then a3=2×3^2+5 =2×9+5=18+5=23.

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