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If the equation has no real root, then lamda lies in the interval |
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Answer» `(-oo,0)` `(-b)/(2a)lt0implieslamdalt0""(5)` `f(0)gt0or9gt0` `:.lamdain(-oo,6)""["form"(2),(3),(5)]` ALSO for no real roots we can have `Dlt0` `implieslamda^(2)-36lt0implieslamdain(-6,6)` HENCE, `lamdain(-oo,6)` |
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