यदि \(u=\frac{\sqrt{3}}{\sqrt{12}}\), तो \(u^{-2}\) का मान क्या है?
If \(u=\frac{\sqrt{3}}{\sqrt{12}}\), what is the value of \(u^{-2}\)?
Explanation opens after your attempt
Correct Answer
A. (4)
Concept
\(\frac{\sqrt{3}}{\sqrt{12}}=\sqrt{\frac{3}{12}}=\frac{1}{2}\), so \(u^{-2}=4\). In exams, simplify the radical first.
Why this answer is correct
The correct answer is A. (4). \(\frac{\sqrt{3}}{\sqrt{12}}=\sqrt{\frac{3}{12}}=\frac{1}{2}\), so \(u^{-2}=4\). In exams, simplify the radical first.
Exam Tip
\(\frac{\sqrt{3}}{\sqrt{12}}=\sqrt{\frac{3}{12}}=\frac{1}{2}\), इसलिए \(u^{-2}=4\)। परीक्षा में पहले करणी को सरल करें।
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