यदि \(r=\sqrt{28}+\sqrt{112}\) है, तो (r) किसके बराबर है?
If \(r=\sqrt{28}+\sqrt{112}\), what is (r) equal to?
Explanation opens after your attempt
A. \(6\sqrt{7}\)
Concept
\(\sqrt{28}=2\sqrt{7}\) and \(\sqrt{112}=4\sqrt{7}\). Therefore \(r=6\sqrt{7}\).
Why this answer is correct
The correct answer is A. \(6\sqrt{7}\). \(\sqrt{28}=2\sqrt{7}\) and \(\sqrt{112}=4\sqrt{7}\). Therefore \(r=6\sqrt{7}\).
Exam Tip
\(\sqrt{28}=2\sqrt{7}\) और \(\sqrt{112}=4\sqrt{7}\) है। इसलिए \(r=6\sqrt{7}\) है।
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