67. The least integral value of λ for which x 2 – 4x + λ > 0, ∀x∈R is
(1) 4 (2) 5 (3) 6 (4) 7
68. If b > a then the equation (x – a) (x – b) – 1 = 0 has
(1) Both roots in [a, b]
(2) Both roots in (–∞, a)
(3) Both roots in (b, ∞)
(4) One roots in (–∞, a) and other in (b, ∞)
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Hope this information will clear your doubts about this topic.
If you have any doubts just ask here on the ask and answer forum and our experts will try to help you out as soon as possible.
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