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If the equation f(x)= (a+b-c)x^(2)+(b+c-...

If the equation `f(x)= (a+b-c)x^(2)+(b+c-a) x+(c+a-b)= 0` has only one root equal to one. Then the vlaue of `3(b+ a)/(c )` is

A

a) 0

B

b) `-3`

C

c) 1

D

d) 2

Text Solution

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The correct Answer is:
C
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