\( 1005^2-995^2 \) का मान क्या है?
What is the value of \( 1005^2-995^2 \)?
Explanation opens after your attempt
B. (20000)
Concept
Using (a-2-b-2=(a+b)(a-b)), we get \(2000\cdot10=20000\). Exam tip: directly find sum and difference.
Why this answer is correct
The correct answer is B. (20000). Using (a-2-b-2=(a+b)(a-b)), we get \(2000\cdot10=20000\). Exam tip: directly find sum and difference.
Exam Tip
(a-2-b-2=(a+b)(a-b)) से \(2000\cdot10=20000\) मिलता है। परीक्षा में सीधे योग और अंतर निकालें।
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