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relations.md

## Relations and Functions ### Class 11 · NCERT Chapter 2 Given two non-empty sets $A$ and $B$: $$A \times B = \{(a,b) : a \in A,\ b \in B\}$$ --- ## Key Properties - If $n(A)=p$, $n(B)=q$, then $n(A\times B)=pq$ - $A \times B \neq B \times A$ in general - $A \times \varnothing = \varnothing$

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Relations and Functions

Class 11 · NCERT Chapter 2

Given two non-empty sets A and B:

A × B = {(a,b) : a ∈ A, b ∈ B}

If n(A)=p, n(B)=q, then n(A×B)=pq
A × B ≠ B × A in general
A × ∅ = ∅

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$ claude mcp add mdeck \ --transport http \ --url https://mdeck.dev/api/mcp/ \ --header "Authorization: Bearer YOUR_KEY" ✓ Added MCP server: mdeck > Here's Chapter 2. Make a deck with the key theorems. ✓ Created deck: relations-functions 12 slides · KaTeX math · code examples edit at mdeck.dev/decks/relations-functions/