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Question

Mathematics Question on permutations and combinations

Compute 8!6!×2!\frac{8!}{6!\times2!}

Answer

Given, 8!6!×2!\frac{8!}{6!\times2!}

=8×7×6!6!×2×1=\frac{8\times7\times6!}{6!\times2\times1}

=8×72=\frac{8\times7}{2}
=28=28