Why were the articles of confederation an important document in american history ?

The articles of confederation are an important document in American history because it formed the basis on which the newly formed country of America would function after it's independence from Great Britain.

Explanation:

When America gained independence from the great Britain, a written form of validation was erected which was called articles of confederation. These articles were a proof that the great Britain has left the American land for good.  

offline recommendation systems option b

because recommendation systems produce a list of two ways

1. through collaborative filtering

or

2. through content-based filtering

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