( (a-b)2 ) के दृश्य मॉडल में छोटा \(b^2\) वर्ग क्यों जोड़ा जाता है?
Why is the small \(b^2\) square added in the visual model of ( (a-b)2 )?
Explanation opens after your attempt
Correct Answer
A. क्योंकि कोना दो बार घट जाता हैBecause the corner is subtracted twice
Concept
While removing two strips, the \(b^2\) corner is removed twice. In exams, add it back once.
Why this answer is correct
The correct answer is A. क्योंकि कोना दो बार घट जाता है / Because the corner is subtracted twice. While removing two strips, the \(b^2\) corner is removed twice. In exams, add it back once.
Exam Tip
दो पट्टियाँ हटाते समय कोने का \(b^2\) भाग दो बार हटता है। परीक्षा में उसे एक बार वापस जोड़ें।
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