A) \[ab=-1\]
B) \[a=-b\]
C) \[a=b\]
D) \[ab=1\]
Correct Answer: B
Solution :
Coefficient of \[{{x}^{2}}+\]coefficient of \[{{y}^{2}}=0\] \[\Rightarrow a+b=0\Rightarrow a=-b\].You need to login to perform this action.
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