यदि \(q=\sqrt{15}+4\) है तो \(q^2-8q\) का मान क्या है?
If \(q=\sqrt{15}+4\), what is the value of \(q^2-8q\)?
Explanation opens after your attempt
A. (-1)
Concept
\(q^2=31+8\sqrt{15}\) and \(8q=32+8\sqrt{15}\). Subtracting gives (-1).
Why this answer is correct
The correct answer is A. (-1). \(q^2=31+8\sqrt{15}\) and \(8q=32+8\sqrt{15}\). Subtracting gives (-1).
Exam Tip
\(q^2=31+8\sqrt{15}\) और \(8q=32+8\sqrt{15}\) है। घटाने पर (-1) मिलता है।
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