A^2 + 2ab + b^2 is the derivation.
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no its wrong . its expansion
No way yar... it's correct..
ok may be
coz in my book it was expansion.
then wat's that right expansion u prefer?? i'm sure dat my answer is correct.. if anything wrong, can u plzz say the right one

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A2 + b2 + 2ab is the expansion
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