Mathematics, 03.07.2021 18:20 sariahieveryone

If A = $if \: a \: = \binom{53}{24} \: and \: b = \binom{32}{10} then \: prove \: that |ab| = |a| . |b|$
and B = Prove that |AB| = |A| . |B|

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If A =
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