Given two sets $A = \{apple, banana, cherry\}$ and $B = \{red, yellow\}$, find the Cartesian product $A \times B$.

Discrete MathematicsSet TheoryCartesian Product
2025/6/4

1. Problem Description

Given two sets A={apple,banana,cherry}A = \{apple, banana, cherry\} and B={red,yellow}B = \{red, yellow\}, find the Cartesian product A×BA \times B.

2. Solution Steps

The Cartesian product A×BA \times B is the set of all ordered pairs (a,b)(a, b) where aAa \in A and bBb \in B.
A={apple,banana,cherry}A = \{apple, banana, cherry\}
B={red,yellow}B = \{red, yellow\}
A×B={(a,b)aA,bB}A \times B = \{(a, b) \mid a \in A, b \in B\}
A×B={(apple,red),(apple,yellow),(banana,red),(banana,yellow),(cherry,red),(cherry,yellow)}A \times B = \{(apple, red), (apple, yellow), (banana, red), (banana, yellow), (cherry, red), (cherry, yellow)\}

3. Final Answer

A×B={(apple,red),(apple,yellow),(banana,red),(banana,yellow),(cherry,red),(cherry,yellow)}A \times B = \{(apple, red), (apple, yellow), (banana, red), (banana, yellow), (cherry, red), (cherry, yellow)\}

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