यदि (A) संख्या (30) के अभाज्य भाजकों का समुच्चय है, तो कौन सा (A) का उचित उपसमुच्चय है?
If (A) is the set of prime divisors of (30), which is a proper subset of (A)?
Explanation opens after your attempt
A. ({2,5})
Concept
Here \(A=\{2,3,5\}\), and ({2,5}) lies inside it but is not equal to it. Hence it is a proper subset.
Why this answer is correct
The correct answer is A. ({2,5}). Here \(A=\{2,3,5\}\), and ({2,5}) lies inside it but is not equal to it. Hence it is a proper subset.
Exam Tip
\(A=\{2,3,5\}\) है और ({2,5}) इसके अंदर है पर बराबर नहीं है। इसलिए यह उचित उपसमुच्चय है।
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