यदि \(A={x\in\mathbb{N}:x\mid 72}\) और \(B={x\in\mathbb{N}:x\mid 90}\), तो \(A\cap B\) क्या है?
If \(A={x\in\mathbb{N}:x\mid 72}\) and \(B={x\in\mathbb{N}:x\mid 90}\), what is \(A\cap B\)?
Explanation opens after your attempt
Correct Answer
A. ({1,2,3,6,9,18})
Concept
Common divisors are divisors of (\gcd(72,90)=18). Thus \(A\cap B={1,2,3,6,9,18}\).
Why this answer is correct
The correct answer is A. ({1,2,3,6,9,18}). Common divisors are divisors of (\gcd(72,90)=18). Thus \(A\cap B={1,2,3,6,9,18}\).
Exam Tip
सामान्य भाजक (\gcd(72,90)=18) के भाजक होंगे। अतः \(A\cap B={1,2,3,6,9,18}\)।
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