Math, asked by googleboy1305, 1 year ago

please answer me please please please

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Answered by amod14102003

0

Answer:

Step-by-step explanation:

googleboy1305: hn

Answered by candy915

1

An=(n-1)(2-n)(3+n)
A20=(20-1)(2-20)(3+20)
A20=19 x -18 x 23
A20=7866

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