Let A be the set of all functions with domain R and codomain [-1,1].
1. Give 2 functions that are elements of A.
2. Let R = {(f,g) l f(0) = g(0)}. Determine if the given reflection is reflexive, symmetric, and/or transitive. Give brief explanations to go with your answers.
3. Describe in words the set given by [cosx]. (We did a problem before that defined the set [x] for a given relation R by the rule [x] = {y l (x,y) ∈ R}.)

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since and cosine come to mind right away

they leave so very quickly...

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