यदि (p(x)=x-2-8x+7) है, तो इसके शून्यकों की तुलना \(x^2-8x+10\) से कैसे होगी?
If (p(x)=x-2-8x+7), how do its zeroes compare with those of \(x^2-8x+10\)?
Explanation opens after your attempt
A. पहले के परिमेय, दूसरे के अपरिमेय वास्तविकFirst are rational, second are irrational real
Concept
For the first, (D=64-28=36) is a perfect square; for the second, (D=64-40=24) is not. The discriminant quickly tells the type of zeroes.
Why this answer is correct
The correct answer is A. पहले के परिमेय, दूसरे के अपरिमेय वास्तविक / First are rational, second are irrational real. For the first, (D=64-28=36) is a perfect square; for the second, (D=64-40=24) is not. The discriminant quickly tells the type of zeroes.
Exam Tip
पहले में (D=64-28=36) पूर्ण वर्ग है, दूसरे में (D=64-40=24) पूर्ण वर्ग नहीं है। विविक्तकर से शून्यकों का प्रकार तुरंत पता चलता है।
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