यदि \(18^2\) को ((20-2)2) से निकालें तो अंत में जोड़ा जाने वाला छोटा वर्ग कितना है?
If \(18^2\) is found using ((20-2)2), what is the small square added at the end?
Explanation opens after your attempt
B. (4)
Concept
In ((20-2)2), the small square is \(2^2=4\). Exam tip: after subtracting two rectangles, add the small square.
Why this answer is correct
The correct answer is B. (4). In ((20-2)2), the small square is \(2^2=4\). Exam tip: after subtracting two rectangles, add the small square.
Exam Tip
((20-2)2) में छोटा वर्ग \(2^2=4\) है। परीक्षा में दो आयत घटाने के बाद छोटा वर्ग जोड़ें।
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