यदि \(x^2-4x+r\) के शून्यक परिमेय हैं, तो (r=3) रखने पर कथन कैसा है?
If zeroes of \(x^2-4x+r\) are rational, what happens when (r=3)?
Explanation opens after your attempt
A. कथन सही हैThe statement is true
Concept
For (r=3), (D=16-12=4), which is a perfect square. Therefore the zeroes are rational.
Why this answer is correct
The correct answer is A. कथन सही है / The statement is true. For (r=3), (D=16-12=4), which is a perfect square. Therefore the zeroes are rational.
Exam Tip
(r=3) पर (D=16-12=4) है, जो पूर्ण वर्ग है। इसलिए शून्यक परिमेय हैं।
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