How many maps are there?

Prepare for the Army Corps, Regulations, and Military Protocols Exam. Use multiple choice questions and flashcards, with detailed hints and explanations. Get ready to excel in your exam!

Multiple Choice

How many maps are there?

Explanation:
Each map is determined by choosing an image in the codomain for every element in the domain. If the domain has three elements and the codomain has two possible images, you have two choices for each element. Because the choices are independent, multiply: 2 × 2 × 2 equals 8. This use of the product rule shows there are eight possible maps.

Each map is determined by choosing an image in the codomain for every element in the domain. If the domain has three elements and the codomain has two possible images, you have two choices for each element. Because the choices are independent, multiply: 2 × 2 × 2 equals 8. This use of the product rule shows there are eight possible maps.

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