A) \[{{a}^{2}}\,+\,2ab\,+\,{{b}^{2}}\]
B) \[{{a}^{2}}\,-\,ab\,+\,ab\,-\,{{b}^{2}}\]
C) \[{{a}^{2}}\,-\,2ab\,+\,{{b}^{2}}\]
D) \[{{a}^{2}}\,+\,ab\,-\,ab\,+{{b}^{2}}\]
E) None of these
Correct Answer: C
Solution :
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