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If E = {1, 2}, how many subsets of E contain the element 1?
Practice Questions
Q1
If E = {1, 2}, how many subsets of E contain the element 1?
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Questions & Step-by-Step Solutions
If E = {1, 2}, how many subsets of E contain the element 1?
Steps
Concepts
Step 1: Identify the set E, which is {1, 2}.
Step 2: Understand that a subset is a smaller set that can be formed from E.
Step 3: We want to find subsets that must include the element 1.
Step 4: List the possible subsets of E that include 1: {1} and {1, 2}.
Step 5: Note that the empty set does not contain 1, so it is not included.
Step 6: Count the subsets that contain 1: we have {1} and {1, 2}, which gives us a total of 2 subsets.
Subsets
– Understanding how to form subsets from a given set and the criteria for inclusion of specific elements.
Set Theory
– Basic principles of set theory, including the definition of subsets and the inclusion of elements.
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