Question: 1 1 12 et 4 = ( 2 )-B = (3) 12 34 6) A a) Show that (AB) = BA b) Show that

1 1 12 et 4 = ( 2 )-B = (3) 12

1 1 12 et 4 = ( 2 )-B = (3) 12 34 6) A a) Show that (AB) = BA b) Show that ( 4 ) = ( 4) c) Show that (4) = d) Is it true that (4)* = (4) ?

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