यदि \(a=\sqrt{8}-\sqrt{2}\) है तो (a) किसके बराबर है?
If \(a=\sqrt{8}-\sqrt{2}\), what is (a) equal to?
Explanation opens after your attempt
Correct Answer
B. \(\sqrt{2}\)
Concept
\(\sqrt{8}=2\sqrt{2}\) so \(2\sqrt{2}-\sqrt{2}=\sqrt{2}\). Subtract coefficients of like radicals.
Why this answer is correct
The correct answer is B. \(\sqrt{2}\). \(\sqrt{8}=2\sqrt{2}\) so \(2\sqrt{2}-\sqrt{2}=\sqrt{2}\). Subtract coefficients of like radicals.
Exam Tip
\(\sqrt{8}=2\sqrt{2}\) इसलिए \(2\sqrt{2}-\sqrt{2}=\sqrt{2}\) है। समान मूलों के गुणांक घटाएं।
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