(\sqrt{10}\(3\sqrt{10}-2\sqrt{40}\)) का सरल रूप क्या है?
What is the simplified form of (\sqrt{10}\(3\sqrt{10}-2\sqrt{40}\))?
Explanation opens after your attempt
B. (-10)
Concept
\(\sqrt{40}=2\sqrt{10}\), so the bracket is \(-\sqrt{10}\) and the product is (-10). Simplify the bracket first.
Why this answer is correct
The correct answer is B. (-10). \(\sqrt{40}=2\sqrt{10}\), so the bracket is \(-\sqrt{10}\) and the product is (-10). Simplify the bracket first.
Exam Tip
\(\sqrt{40}=2\sqrt{10}\), इसलिए कोष्ठक \(-\sqrt{10}\) और गुणनफल (-10) है। पहले कोष्ठक को सरल करें।
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