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Y

yun.tudy

H

huytrandinh

[TEX]|\omega |=C_{52}^{5}[/TEX]
[TEX]|\omega _{A}|=C_{4}^{2}.C_{4}^{2}.44=1584[/TEX]
[TEX]=>P(A)=\frac{|\omega _{A}|}{|\omega |}=\frac{33}{54145}[/TEX]
 
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