यदि \(18^2\) को \((20-2)^2\) के मॉडल से देखें तो कौन सा पद घटेगा?
If \(18^2\) is seen using the model \((20-2)^2\), which term will be subtracted?
Explanation opens after your attempt
Correct Answer
A. \(2 \times 20 \times 2\)
Concept
In \((a-b)^2\), \(2ab\) is subtracted. Here the subtracted term is \(2 \times 20 \times 2\).
Why this answer is correct
The correct answer is A. \(2 \times 20 \times 2\). In \((a-b)^2\), \(2ab\) is subtracted. Here the subtracted term is \(2 \times 20 \times 2\).
Exam Tip
\((a-b)^2\) में \(2ab\) घटता है। यहां घटने वाला पद \(2 \times 20 \times 2\) है।
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