9 Combination 2

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9 Combination 2

Mathematics
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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same formula
\[\frac{ 9! }{ 2! (9-2)! }\]

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Other answers:

looks good
\[\frac{ 9*8*7*6*5*4*3*2*1 }{ 2*1 (7)! }\]
that's right but here is a shortcut \[\huge\rm \frac{ 9 · 8 · 7! }{ 2!(7)! } =\] there is 7! at the misdemeanor so you can expand 9! to 7! so you cancel them out then we don't need a calculator
but then wouldnt it just be 9*8
\[\huge\rm \frac{ 9 · 8 ·\cancel{7!} }{ 2!\cancel{(7)!} } =\]
yes right
but don't forget the 2! at the denominator
then 2 goes into 8 2 times and 8/2=4 so 9*4=36?
right
k thx
np :=)

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