यदि \(A=\{1,2,3\}\) और \(B=\{2,4,6\}\) हों तथा \(R=\{(a,b):b=2a\}\) हो तो (R) का परिसर क्या है?
If \(A=\{1,2,3\}\), \(B=\{2,4,6\}\), and \(R=\{(a,b):b=2a\}\), what is the range of (R)?
Explanation opens after your attempt
Correct Answer
B. \({2,4,6}\)
Concept
Putting (a=1,2,3) gives (b=2,4,6). Hence the range is ({2,4,6}).
Why this answer is correct
The correct answer is B. \({2,4,6}\). Putting (a=1,2,3) gives (b=2,4,6). Hence the range is ({2,4,6}).
Exam Tip
(a=1,2,3) रखने पर (b=2,4,6) मिलते हैं। इसलिए परिसर ({2,4,6}) है।
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