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    				| 1. | The values of m(m ∈ R), for which both roots of the equation x2–6mx + 9m2 – 2m + 2 = 0 exceed 3 is(a) (-∞, 1)(b) (-∞, 1)(c) (1, ∞)(d) none of these | 
| Answer» Correct option (d) none of these Explanation: D ≥ 0 (–6m)2 –4.1.(9m2 –2m + 2) ≥ 0 8m – 8 ≥ 0 m ≥ 1 ........(1) a.f(3) > 0 1.(32 – 18m + 9m2 – 2m + 2) > 0 9m2 – 20m + 11 > 0 9m2 – 9m – 11m + 11 > 0 9m – 11) (m–1) > 0 m < 1 & m > 11/9 ...(2) α + β > 6 6m > 6 From (1), (2) and (3) m ∈(11/9, ∞) | |