A) \[-\,{{a}^{2}}+ab+{{b}^{2}}-2\]
B) \[{{a}^{2}}+3ab+4{{b}^{2}}+2\]
C) \[{{a}^{2}}-3ab-{{b}^{2}}-2\]
D) \[{{a}^{2}}-3ab-{{b}^{2}}+2\]
E) None of these
Correct Answer: C
Solution :
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