(\(\sqrt{10}+\sqrt{2}\)2) का प्रसार कौन-सा है?
Which is the expansion of (\(\sqrt{10}+\sqrt{2}\)2)?
Explanation opens after your attempt
B. \(12+4\sqrt{5}\)
Concept
The expansion is \(10+2+2\sqrt{20}=12+4\sqrt{5}\). Do not forget to simplify the middle term.
Why this answer is correct
The correct answer is B. \(12+4\sqrt{5}\). The expansion is \(10+2+2\sqrt{20}=12+4\sqrt{5}\). Do not forget to simplify the middle term.
Exam Tip
विस्तार \(10+2+2\sqrt{20}=12+4\sqrt{5}\) है। मध्य पद को सरल करना न भूलें।
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