यदि \(99^2\) को \((100-1)^2\) के मॉडल से निकालें तो सही मान क्या है?
If \(99^2\) is found using the model of \((100-1)^2\), what is the correct value?
Explanation opens after your attempt
A. \(9801\)
Concept
\((100-1)^2=10000-200+1=9801\). Exam tip: in a subtraction square \(2ab\) is subtracted.
Why this answer is correct
The correct answer is A. \(9801\). \((100-1)^2=10000-200+1=9801\). Exam tip: in a subtraction square \(2ab\) is subtracted.
Exam Tip
\((100-1)^2=10000-200+1=9801\) है। परीक्षा में घटाव वाले वर्ग में \(2ab\) घटता है।
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