Question: ( page 8 0 4 , problem 3 , 3 pts ) Prove each of the following: a ) A ( B C D )

(page 804, problem 3,3pts )Prove each of the following:
a)A(BCD)=(AB)(AD)(AC).
b)A(BCA)=A.
c)(BC)-AsubeC.
(page 804, problem 3,3pts )Prove each of the following: a)A(BCD)=(AB)(AD)(AC). b)A(BCA)=A.

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