\(A=\{1,2,3,4\}\) पर \(R=\{(a,b):a^2+b^2=25\}\) है। (R) में कितने युग्म होंगे?
On \(A=\{1,2,3,4\}\), \(R=\{(a,b):a^2+b^2=25\}\). How many pairs are in (R)?
Explanation opens after your attempt
B. (2)
Concept
Only ((3,4)) and ((4,3)) satisfy \(3^2+4^2=25\). Therefore there are (2) pairs.
Why this answer is correct
The correct answer is B. (2). Only ((3,4)) and ((4,3)) satisfy \(3^2+4^2=25\). Therefore there are (2) pairs.
Exam Tip
केवल ((3,4)) और ((4,3)) पर \(3^2+4^2=25\) मिलता है। इसलिए कुल (2) युग्म हैं।
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