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watching
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10 Nov 2019
9. Which of the following functions are injective? Which are surjective? (a) The constant function f : RR defined by f(x)-3. (b) The constant function f :R-3} defined by f(z)-3 (c) The identity function f : R R defined by f(x)-x. (d) The function f : R defined by f(x-x. (e) The cardinality function, given by || : Finite sets Zo. 20.
9. Which of the following functions are injective? Which are surjective? (a) The constant function f : RR defined by f(x)-3. (b) The constant function f :R-3} defined by f(z)-3 (c) The identity function f : R R defined by f(x)-x. (d) The function f : R defined by f(x-x. (e) The cardinality function, given by || : Finite sets Zo. 20.
Keith LeannonLv2
1 Apr 2019