A) \[\frac{1+\sqrt{1-4a}}{a}>x>\frac{1-\sqrt{1-4a}}{a}\]
B) \[x<\frac{1-\sqrt{1-4a}}{a}\]
C) x < 2
D) \[2>x>\frac{1+\sqrt{1-4a}}{a}\]
Correct Answer: A
Solution :
\[a{{x}^{2}}-2x+4>0\] Þ \[x=\frac{2\pm \sqrt{4-16a}}{2a}\] Þ \[x=\frac{1\pm \sqrt{1-4a}}{a}\] \ \[\frac{1-\sqrt{1-4a}}{a}<x<\frac{1+\sqrt{1-4a}}{a}\].You need to login to perform this action.
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