The values of \['a'\] for which \[({{a}^{2}}-1){{x}^{2}}+2(a-1)x+2\] i – McqOptions

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1.	The values of \['a'\] for which \[({{a}^{2}}-1){{x}^{2}}+2(a-1)x+2\] is positive for any \[x\] are [UPSEAT 2001]
A.	\[a\ge 1\]
B.	\[a\le 1\]
C.	\[a>-3\]
D.	\[a<-3\]or \[a>1\]
Answer» E.

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