यदि \(A={x:x\in\mathbb{R},;x^2-5x+6=0}\) और \(B={x:x\in\mathbb{R},;x^2-7x+12=0}\), तो \(A\cap B\) क्या है?
If \(A={x:x\in\mathbb{R},;x^2-5x+6=0}\) and \(B={x:x\in\mathbb{R},;x^2-7x+12=0}\), what is \(A\cap B\)?
Explanation opens after your attempt
A. ({3})
Concept
First \(A=\{2,3\}\) and \(B=\{3,4\}\). The only common element is (3).
Why this answer is correct
The correct answer is A. ({3}). First \(A=\{2,3\}\) and \(B=\{3,4\}\). The only common element is (3).
Exam Tip
पहले \(A=\{2,3\}\) और \(B=\{3,4\}\) मिलते हैं। सामान्य तत्व केवल (3) है।
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