1answer is c)b=0 ????
Find the condition that the roots of the above equation r reciprocal of each other
A)a-b=0
B)a=0
C)b=0
D)a+b=0
-
UP 0 DOWN 0 0 4
4 Answers
1ans.is C
on simplifying we get
[(b-a)x2 -2abx-(a+b)]/[abx2+ax+bx+1]=0
so,
(b-a)x2-2abx-(a+b)=0
for roots to be reciprocal
product of roots is 1
-(b+a)/(b-a) =1
b+a=-b+a
2b=0
b=0
which is required condition
