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College+ · Discrete Math

Sets, relations & functions

389 problems in this skill, each with a solver-verified answer key. Answers are checked the moment you submit — with a hint if you want one and a worked solution afterwards.

What the problems look like

A few statements from this skill. Answers, hints and worked solutions live in the practice session.

  1. Warm-up

    Let AA be a set with 66 elements and BB a set with 33 elements. How many distinct functions f:A→Bf: A \to B are there?

  2. Warm-up

    Let AA be a set with 55 elements and BB a set with 33 elements. How many distinct functions f:A→Bf: A \to B are there?

  3. Warm-up

    Let AA be a set with 66 elements and BB a set with 55 elements. How many distinct functions f:A→Bf: A \to B are there?

Problems shown under their original terms: Generated (template, solver-computed).

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