भुजा (m+n) वाले वर्ग को चार भागों में बांटने पर कौन सा पद दो बार आता है?
When a square of side (m+n) is divided into four parts, which term appears twice?
Explanation opens after your attempt
C. (mn)
Concept
Two rectangles (mn) and (mn) are formed. Therefore the middle term is (2mn).
Why this answer is correct
The correct answer is C. (mn). Two rectangles (mn) and (mn) are formed. Therefore the middle term is (2mn).
Exam Tip
दो आयत (mn) और (mn) बनते हैं। इसलिए मध्य पद (2mn) होता है।
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