यदि \(x=\sqrt{7}+\sqrt{5}\) तो \(x^2\) का मान क्या है?
If \(x=\sqrt{7}+\sqrt{5}\) then what is the value of \(x^2\)?
Explanation opens after your attempt
A. \(12+2\sqrt{35}\)
Concept
Use ((a+b)2=a-2+b-2+2ab). Apply identities carefully.
Why this answer is correct
The correct answer is A. \(12+2\sqrt{35}\). Use ((a+b)2=a-2+b-2+2ab). Apply identities carefully.
Exam Tip
((a+b)2=a-2+b-2+2ab) का उपयोग करें। सूत्रों को सावधानी से लागू करें।
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