Let U={u,n,i,t,e}

A={n,i,t}
B={n,e}
C={u,n,i,t,e}
D={u,e}
Find each of the following:
(a)A(with upside down horseshoe)B
(b)C U D
(c)D (with line over the D)

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2 answers

(a) A intersection B = {n}

(b) C union D = {u,n,i,t,e}=C

(c) complement of D = {n,i,t}=A
how do u get this