A) \[1-2{{a}^{^{2}}}+2{{b}^{2}}\]
B) \[1+2{{a}^{2}}+2{{b}^{2}}\]
C) \[1-2{{a}^{2}}-2{{b}^{2}}\]
D) \[1-2{{a}^{2}}+{{b}^{2}}\]
Correct Answer: C
Solution :
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