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Class 10 :-Tamilnadu Sslc
By
Naveena Boopathi
Quality Education For All
உறவுகளும் அதன
் சார்புகளும்
உறவுகளும்
அதன்
சார்புகளும்
Relations
and
Functions
• Sets – கணம்
Collection of well-defined objects.
நன
் கு வரயறுக்கபட்ட, பபாருள்களின
்
பதாகுப்பு ஆகும்.
• வரிசச சசாடி (Ordered Pair)
இருபிடத்சத துல்லியமாகக்
குறிக்கின
் ற எண
் கள்
An ordered pair consists of two numbers that are
written in the fixed order
• கார்டீசியன
் பெருக்கல் (Cartesian Product)
A X B = {(a,d)| a ∈ A ,d ∈ B }
Suma
Hema
Boby
Aira
வரரயரற
A மற்றும் B என
் பன இரண
் டு பவற்றில்லா கணங் கள் எனில்,
இவற்றின
் வரிரசச் சசாடிகளின
் கணமானது (a, b) a ∈ A, b ∈ B என
இருக்கும். இரத A மற்றும் B-யின
் கார்டீசியன
் பபருக்கல்
என
் கிசறாம். A X B
Definition
If A and B are two non-empty sets, then the set of all ordered
pairs (a, b) such that a ∈ A, b ∈ B is called the Cartesian Product
of A and B, and is denoted by A×B .
Ex 1.1: சகள்வி 1.
பின
் வருவனவற்றிற்கு A × B, A × A
மற்றும் B × A ஐக் காண
் க.
Find A × B, A × A and B × A
(i) A = {2,-2,3} and B = {1,-4}
3) B ×A = {(− 2, 3),(−2, 4),(0, 3),(0, 4),(3, 3),(3, 4)} எனில் , A மற்றும் B ஐ காண
் க
find A and B.
இயல் எண
் கள் ( Natural Numbers) N = { 1,2,3,4,..}
முழு எண
் கள் (Whole Numbers) W = { 0,1,2,3,..}
முழுக்கள் ( Integers) Z = {….,-2, -1, 0, 1, 2,..}
விகிதமுறு எண
் கள் ( Rational Numbers) Q = { p/q | p ,q ∈ Z , q ≠ 0 }
பமய் எண
் கள் ( Real Numbers) R = Q U Q ‘
இங்கு Q ‘ -ஆனது விகிதமுறா எண
் களின் கணமாகும்.
( irrational Numbers )
Ex:1.1 சகள்வி 6
A = {x ∈ W/x < 2}, B = {x ∈ N/1 < x ≤ 4} மற்றும் c = {3, 5} எனில்
கீசேக் பகாடுக்கப்பட்டுள்ள சமன
் பாடுகரளச் சரி
பார்க்க.
Let A = {x ∈W | x < 2},
B = {x ∈ N | 1 < × ≤ 4} and
C = {3,5}.
i) A × (B ∪ C) = (A × B) ∪ (A × C)
சகள்வி 7.
A என
் பது 8 – ஐ விடக் குரறவான இயல் எண
் களின
் கணம், B என
் பது
8-ஐ விடக் குரறவான
பகா எண
் களின
் கணம் மற்றும் C என
் பது இரட்ரடப்பரட பகா
எண
் களின
் கணம் எனில் கீே்க்கண
் டவற்ரறச் சரிபார்க்க.
Let A = The set of all natural numbers less than 8, B = The set of all prime
numbers less than 8, C = The set of even prime number. Verify that
(i) (A ∩ B)×C = (A×C ) ∩ (B ×C)
Class 10 maths lesson 1   part 4
Class 10 maths lesson 1   part 4

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  • 1. Class 10 :-Tamilnadu Sslc By Naveena Boopathi Quality Education For All உறவுகளும் அதன ் சார்புகளும்
  • 3. • Sets – கணம் Collection of well-defined objects. நன ் கு வரயறுக்கபட்ட, பபாருள்களின ் பதாகுப்பு ஆகும்.
  • 4. • வரிசச சசாடி (Ordered Pair) இருபிடத்சத துல்லியமாகக் குறிக்கின ் ற எண ் கள் An ordered pair consists of two numbers that are written in the fixed order
  • 5. • கார்டீசியன ் பெருக்கல் (Cartesian Product) A X B = {(a,d)| a ∈ A ,d ∈ B } Suma Hema Boby Aira
  • 6. வரரயரற A மற்றும் B என ் பன இரண ் டு பவற்றில்லா கணங் கள் எனில், இவற்றின ் வரிரசச் சசாடிகளின ் கணமானது (a, b) a ∈ A, b ∈ B என இருக்கும். இரத A மற்றும் B-யின ் கார்டீசியன ் பபருக்கல் என ் கிசறாம். A X B Definition If A and B are two non-empty sets, then the set of all ordered pairs (a, b) such that a ∈ A, b ∈ B is called the Cartesian Product of A and B, and is denoted by A×B .
  • 7. Ex 1.1: சகள்வி 1. பின ் வருவனவற்றிற்கு A × B, A × A மற்றும் B × A ஐக் காண ் க. Find A × B, A × A and B × A (i) A = {2,-2,3} and B = {1,-4}
  • 8. 3) B ×A = {(− 2, 3),(−2, 4),(0, 3),(0, 4),(3, 3),(3, 4)} எனில் , A மற்றும் B ஐ காண ் க find A and B.
  • 9. இயல் எண ் கள் ( Natural Numbers) N = { 1,2,3,4,..} முழு எண ் கள் (Whole Numbers) W = { 0,1,2,3,..} முழுக்கள் ( Integers) Z = {….,-2, -1, 0, 1, 2,..} விகிதமுறு எண ் கள் ( Rational Numbers) Q = { p/q | p ,q ∈ Z , q ≠ 0 } பமய் எண ் கள் ( Real Numbers) R = Q U Q ‘ இங்கு Q ‘ -ஆனது விகிதமுறா எண ் களின் கணமாகும். ( irrational Numbers )
  • 10. Ex:1.1 சகள்வி 6 A = {x ∈ W/x < 2}, B = {x ∈ N/1 < x ≤ 4} மற்றும் c = {3, 5} எனில் கீசேக் பகாடுக்கப்பட்டுள்ள சமன ் பாடுகரளச் சரி பார்க்க. Let A = {x ∈W | x < 2}, B = {x ∈ N | 1 < × ≤ 4} and C = {3,5}. i) A × (B ∪ C) = (A × B) ∪ (A × C)
  • 11. சகள்வி 7. A என ் பது 8 – ஐ விடக் குரறவான இயல் எண ் களின ் கணம், B என ் பது 8-ஐ விடக் குரறவான பகா எண ் களின ் கணம் மற்றும் C என ் பது இரட்ரடப்பரட பகா எண ் களின ் கணம் எனில் கீே்க்கண ் டவற்ரறச் சரிபார்க்க. Let A = The set of all natural numbers less than 8, B = The set of all prime numbers less than 8, C = The set of even prime number. Verify that (i) (A ∩ B)×C = (A×C ) ∩ (B ×C)