1.

For the equation (e ^(-x))/(1+x)= lamda which of the following statement (s) is/are correct ?

Answer»

when `lamda in (0,oo)` EQUATION has 2 real and DISTINCT ROOTS
when `lamda in (-oo, -e ^(2))` equation has 2 real anddistinct roots
when `lamda in (0,oo)` equatio has 1 real root
when `lamda in (-e,0)` equation has no real root

Answer :B::C::D


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