( (a-b)2-\(a^2+b^2\) ) का सरल रूप क्या है?
What is the simplified form of ( (a-b)2-\(a^2+b^2\) )?
Explanation opens after your attempt
C. (-2ab)
Concept
( (a-b)2=a-2-2ab+b-2 ). Subtracting \(a^2+b^2\) leaves (-2ab).
Why this answer is correct
The correct answer is C. (-2ab). ( (a-b)2=a-2-2ab+b-2 ). Subtracting \(a^2+b^2\) leaves (-2ab).
Exam Tip
( (a-b)2=a-2-2ab+b-2 ) है। \(a^2+b^2\) घटाने पर (-2ab) बचता है।
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