(\sqrt{7}\left\(\sqrt{175}-\sqrt{63}\right\)) का मान क्या है?
What is the value of (\sqrt{7}\left\(\sqrt{175}-\sqrt{63}\right\))?
Explanation opens after your attempt
Correct Answer
B. (14)
Concept
\(\sqrt{175}=5\sqrt{7}\) and \(\sqrt{63}=3\sqrt{7}\), so the bracket is \(2\sqrt{7}\). Multiplying by \(\sqrt{7}\) gives (14).
Why this answer is correct
The correct answer is B. (14). \(\sqrt{175}=5\sqrt{7}\) and \(\sqrt{63}=3\sqrt{7}\), so the bracket is \(2\sqrt{7}\). Multiplying by \(\sqrt{7}\) gives (14).
Exam Tip
\(\sqrt{175}=5\sqrt{7}\) और \(\sqrt{63}=3\sqrt{7}\), इसलिए कोष्ठक \(2\sqrt{7}\) है। \(\sqrt{7}\) से गुणा करने पर (14) मिलता है।
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