भुजा (a-b) वाले वर्ग में अंतिम \(b^2\) भाग क्यों जोड़ा जाता है?
Why is the final \(b^2\) part added in a square with side (a-b)?
Explanation opens after your attempt
Correct Answer
A. क्योंकि कोना दो बार हट जाता हैBecause the corner is removed twice
Concept
In the subtraction model, the \(b^2\) corner is removed twice. It is added back once for the correct area.
Why this answer is correct
The correct answer is A. क्योंकि कोना दो बार हट जाता है / Because the corner is removed twice. In the subtraction model, the \(b^2\) corner is removed twice. It is added back once for the correct area.
Exam Tip
घटाव मॉडल में \(b^2\) कोना दो बार हट जाता है। सही क्षेत्र के लिए उसे एक बार वापस जोड़ा जाता है।
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