Homework Help Forum: Elementary Math for Educator

Posted by Sabrina on Saturday, August 8, 2009 at 12:23pm.

Suppose C is a subset of D and D is a Subset of C. If n(c)=5,find n(D) what other relationship exists between C and D

• Elementary Math for Educator - MathMate, Saturday, August 8, 2009 at 12:40pm

  If C ⊂ D ∪ D ⊂ C it implies C = D. Thus if the cardinality of C is 5, the cardinality of D is also 5. The other relationship is, as mentioned above, C = D.

  
  

• Elementary Math for Educator - MathMate, Sunday, August 9, 2009 at 5:27pm

  Correction If C ⊂ D ∩ D ⊂ C ...

  
  

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