यदि \(A=\{1,2,3,4\}\), \(B=\{1,2,3,4,5\}\) और \(R=\{(a,b):a^2<b\}\) है, तो (|R|) क्या है?

If \(A=\{1,2,3,4\}\), \(B=\{1,2,3,4,5\}\), and \(R=\{(a,b):a^2<b\}\), what is (|R|)?

Explanation opens after your attempt
Correct Answer

A. (5)

Step 1

Concept

For (a=1), there are (4) values, and for (a=2), there is (1); none for the rest. Total is (5).

Step 2

Why this answer is correct

The correct answer is A. (5). For (a=1), there are (4) values, and for (a=2), there is (1); none for the rest. Total is (5).

Step 3

Exam Tip

(a=1) पर (4) और (a=2) पर (1) मान मिलते हैं, बाकी पर कोई नहीं। कुल (5) युग्म हैं।

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Mathematics Answer, Explanation and Revision Hints

यदि \(A=\{1,2,3,4\}\), \(B=\{1,2,3,4,5\}\) और \(R=\{(a,b):a^2<b\}\) है, तो (|R|) क्या है? / If \(A=\{1,2,3,4\}\), \(B=\{1,2,3,4,5\}\), and \(R=\{(a,b):a^2<b\}\), what is (|R|)?

Correct Answer: A. (5). Explanation: (a=1) पर (4) और (a=2) पर (1) मान मिलते हैं, बाकी पर कोई नहीं। कुल (5) युग्म हैं। / For (a=1), there are (4) values, and for (a=2), there is (1); none for the rest. Total is (5).

Which concept should I revise for this Mathematics MCQ?

For (a=1), there are (4) values, and for (a=2), there is (1); none for the rest. Total is (5).

What exam hint can help solve this Mathematics question?

(a=1) पर (4) और (a=2) पर (1) मान मिलते हैं, बाकी पर कोई नहीं। कुल (5) युग्म हैं।