\(यदि (A={\)दिन,रात\(}) और (B={\)गर्मी,सर्दी}) हैं, तो ((रात,सर्दी)) किसका तत्व है?
\(If (A={\)day,night\(}) and (B={\)summer,winter}), of which set is ((night,winter)) an element?
Explanation opens after your attempt
Correct Answer
A. \(A\times B\)
Concept
The first component (night) is from (A) and the second component (winter\() is from (B). Therefore, it is an element of (A\times B).\)
Why this answer is correct
\(The correct answer is A. (A\times B). The first component (\)night) is from (A) and the second component (winter\() is from (B). Therefore, it is an element of (A\times B).\)
Exam Tip
पहला घटक (रात) (A) से और दूसरा घटक (सर्दी) (B) से है। \(इसलिए यह (A\times B) का तत्व है\)।
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