यदि (a-b=5) और (ab=6), तो \(a^2+b^2\) क्या होगा?
If (a-b=5) and (ab=6), what is \(a^2+b^2\)?
Explanation opens after your attempt
C. (37)correct value
Concept
(a-2+b-2=(a-b)2+2ab=25+12=37). In exams add (2ab) when using the square of difference identity.
Why this answer is correct
The correct answer is C. (37) / correct value. (a-2+b-2=(a-b)2+2ab=25+12=37). In exams add (2ab) when using the square of difference identity.
Exam Tip
(a-2+b-2=(a-b)2+2ab=25+12=37) है। परीक्षा में अंतर के वर्ग की पहचान में (+2ab) जोड़ें।
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