and
then verify
that
(i) (A + B)?
= A? + B? (ii) (A ? B)? = A? = B?
Answer:
. (i) A + B = 
?.. (1)
Also, 
?.(2)
From (1) and
(2), we get (A + B)? = A? + B?.
(ii) 
.. (1)
Also 
From (1) and
(2), we get (A ? B)? = A? ? B?.
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