यदि ( (a+b)2 ) और \(a^2+b^2\) के मॉडलों में क्षेत्रफल का अंतर पूछा जाए, तो सही अंतर क्या है?
If the area difference between the models of ( (a+b)2 ) and \(a^2+b^2\) is asked, what is the correct difference?
Explanation opens after your attempt
C. (2ab)
Concept
( (a+b)2 ) has two extra (ab) rectangles along with \(a^2+b^2\). In exams, view the difference as missing rectangles.
Why this answer is correct
The correct answer is C. (2ab). ( (a+b)2 ) has two extra (ab) rectangles along with \(a^2+b^2\). In exams, view the difference as missing rectangles.
Exam Tip
( (a+b)2 ) में \(a^2+b^2\) के साथ दो (ab) आयत अतिरिक्त होते हैं। परीक्षा में अंतर को छूटे आयतों से देखें।
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