यदि \(x=\sqrt{8+\sqrt{15}}\) है, तो \(x^2-8\) का मान क्या है?
If \(x=\sqrt{8+\sqrt{15}}\), what is the value of \(x^2-8\)?
Explanation opens after your attempt
A. \(\sqrt{15}\)
Concept
\(x^2=8+\sqrt{15}\). Therefore \(x^2-8=\sqrt{15}\).
Why this answer is correct
The correct answer is A. \(\sqrt{15}\). \(x^2=8+\sqrt{15}\). Therefore \(x^2-8=\sqrt{15}\).
Exam Tip
\(x^2=8+\sqrt{15}\) है। इसलिए \(x^2-8=\sqrt{15}\) होगा।
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