पहचान ( (a+b)2 ) का सही विस्तार क्या है?
What is the correct expansion of the identity ( (a+b)2 )?
Explanation opens after your attempt
B. \(a^2+2ab+b^2\)correct expansion
Concept
In ( (a+b)2 ), the middle term is (2ab). Exam tip: do not forget the middle term in square identities.
Why this answer is correct
The correct answer is B. \(a^2+2ab+b^2\) / correct expansion. In ( (a+b)2 ), the middle term is (2ab). Exam tip: do not forget the middle term in square identities.
Exam Tip
( (a+b)2 ) में बीच का पद (2ab) आता है। परीक्षा में वर्ग पहचान में मध्य पद न भूलें।
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