किस मॉडल में \(x^2\) से \(y^2\) हटाकर बचा भाग ((x+y)(x-y)) के बराबर दिखता है?
In which model does removing \(y^2\) from \(x^2\) show the remaining part equal to ((x+y)(x-y))?
Explanation opens after your attempt
Correct Answer
A. वर्गों के अंतर का मॉडलDifference of squares model
Concept
\(x^2-y^2\) can be cut and rearranged into a ((x+y)(x-y)) rectangle. Exam tip: observe the removed square.
Why this answer is correct
The correct answer is A. वर्गों के अंतर का मॉडल / Difference of squares model. \(x^2-y^2\) can be cut and rearranged into a ((x+y)(x-y)) rectangle. Exam tip: observe the removed square.
Exam Tip
\(x^2-y^2\) को काटकर ((x+y)(x-y)) आयत बनाया जा सकता है। परीक्षा में हटाए गए वर्ग को देखें।
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