यदि वर्ग मॉडल में \(a^2+2ab+b^2\) है पर किसी विद्यार्थी ने केवल \(a^2+b^2\) लिखा, तो कौन सा दृश्य भाग छूट गया?
If a square model has \(a^2+2ab+b^2\) but a student wrote only \(a^2+b^2\), which visual part was missed?
Explanation opens after your attempt
A. दो (ab) आयतTwo (ab) rectangles
Concept
The missed part is (2ab), made of two (ab) rectangles. Exam tip: never omit the middle rectangles.
Why this answer is correct
The correct answer is A. दो (ab) आयत / Two (ab) rectangles. The missed part is (2ab), made of two (ab) rectangles. Exam tip: never omit the middle rectangles.
Exam Tip
छूटा हुआ भाग (2ab) है जो दो (ab) आयतों से बनता है। परीक्षा में बीच के आयतों को कभी न छोड़ें।
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