यदि \(A=\{2\}\) और (B=[-1,4]) हैं, तो \(A\times B\) कौन सा है?
If \(A=\{2\}\) and (B=[-1,4]), which one is \(A\times B\)?
Explanation opens after your attempt
Correct Answer
B. ({(2,y):-1\le y\le4})
Concept
The first component is always (2), and the second varies in ([-1,4]). This is a vertical line segment on (x=2).
Why this answer is correct
The correct answer is B. ({(2,y):-1\le y\le4}). The first component is always (2), and the second varies in ([-1,4]). This is a vertical line segment on (x=2).
Exam Tip
पहला घटक हमेशा (2) है और दूसरा ([-1,4]) में बदलता है। यह (x=2) पर ऊर्ध्वाधर रेखाखंड है।
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