किस दृश्य तुलना से \(101^2-99^2\) तुरंत मिल सकता है?
Which visual comparison can find \(101^2-99^2\) immediately?
Explanation opens after your attempt
Correct Answer
A. ((101-99)(101+99))difference of squares rectangle
Concept
The difference of squares is ((101-99)(101+99)=2\cdot200=400). In exams turn larger square minus smaller square into a rectangle.
Why this answer is correct
The correct answer is A. ((101-99)(101+99)) / difference of squares rectangle. The difference of squares is ((101-99)(101+99)=2\cdot200=400). In exams turn larger square minus smaller square into a rectangle.
Exam Tip
वर्गों का अंतर ((101-99)(101+99)=2\cdot200=400) है। परीक्षा में बड़े वर्ग माइनस छोटे वर्ग को आयत में बदलें।
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