Question: Ex 1 . ( 4 points ) Determine the cardinality of each of the following sets. a . A times B , where A

Ex1.(4points) Determine the cardinality of each of the following sets.
a. A \times B, where A ={a, b, c, d, e}, B ={x}.
b.{{{a, b, c}}}
c.{{}}
d.{{},,{{}}, a ,{}}

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