1.Set Theory
easy

समुच्चयों के गुणधर्मों का प्रयोग करके सिद्ध कीजिए कि

$A \cup( A \cap B )= A$

Option A
Option B
Option C
Option D

Solution

To show: $A \cup(A \cap B)=A$

We know that

$A \subset A$

$A \cap B \subset A$

$\therefore A \cup(A \cap B) \subset A$           ……….$(1)$

Also, $A \subset A \cup(A \cap B)$              …………..$(2)$

$\therefore$ From $(1)$ and $(2), A \cup(A \cap B)=A$

Standard 11
Mathematics

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