If \[x\]is real and \[k=\frac{{{x}^{2}}-x+1}{{{x}^{2}}+x+1},\] then [M – McqOptions

MCQOPTIONS

1.	If \[x\]is real and \[k=\frac{{{x}^{2}}-x+1}{{{x}^{2}}+x+1},\] then [MNR 1992; RPET 1997]
A.	\[\frac{1}{3}\le k\le 3\]
B.	\[k\ge 5\]
C.	\[k\le 0\]
D.	None of these
Answer» B. \[k\ge 5\]

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