QuestionQuestion

1) Let A = {v,w,x,y,z}. Determine the number of relations on A that are reflexive and symmetric

2) Let A = {1,2,3...,10}, and B= {1,2,3...,7}. How many functions f: A -> B satisfy |f(A)| = 4? How many have |f(A)| < or equal 4?

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    Relations and Functions
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