Answers

2016-03-16T17:52:13+05:30
X2+5kx+16=0
a=1
b=5k
c=16
b2-4ac<0
25k2-4x1x16<0
25k2-64<0
(5k+8)(5k-8)<0
5k+8<0
k<-8/5
k<-1.6
5k-8<0
k<1.6
Value of k=(-1.7,-1.8,-1.9...............infinity)
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