find values of k.
by hemangsarkar, Sep 10, 2012, 6:49 AM
Q) find the number of values of 
so that
has two distinct roots in 
.
solution :
assume there are two real roots in. then there must be at least one root of 
in the same interval.
which has roots 
.
they don't lie in the desired interval.
hence no such value of.
so that
has two distinct roots in 
.solution :
assume there are two real roots in
. then there must be at least one root of 
in the same interval.
which has roots 
.they don't lie in the desired interval.
hence no such value of
.
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