Math Problem Statement
두 집합 A ={a, 1} , B={2a+1, 1, 4}에서 A가 B의 부분집합일 때, 정수 a의 값을 모두 구하시오.
Solution
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Math Problem Analysis
Mathematical Concepts
Set Theory
Algebra
Subsets
Formulas
Subsets condition: All elements of set A must be in set B
Solving simple equations a = 2a + 1
Theorems
Subset definition: A is a subset of B if all elements of A are contained in B
Suitable Grade Level
Grades 9-11