यदि \(A=\{1,2,{3,4}\}\) है तो निम्न में से कौन (A) का उपसमुच्चय है?
If \(A=\{1,2,{3,4}\}\), which of the following is a subset of (A)?
Explanation opens after your attempt
B. ({2,{3,4}})
Concept
Both (2) and ({3,4}) are elements of (A). Changing braces can change the element.
Why this answer is correct
The correct answer is B. ({2,{3,4}}). Both (2) and ({3,4}) are elements of (A). Changing braces can change the element.
Exam Tip
(2) और ({3,4}) दोनों (A) के अवयव हैं। कोष्ठक बदलने से अवयव बदल सकता है।
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