16.Which of the following has real roots? (a) x2 + 2V3x-1=0
(b) x² + 2x + 4 = 0
(c) x2-x+1=0
(d) 3x2 - 2x + 2 = 0
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16.Which of the following has real roots? (a) x2 + 2V3x-1=0
(b) x² + 2x + 4 = 0
(c) x2-x+1=0
(d) 3x2 - 2x + 2 = 0
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