'If the roots of the equation `(x^2-b x)/(a x-c)=(m-1)/(m+1)` are equal to opposite sign, then the

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"If the roots of the equation `(x^2-b x)/(a x-c)=(m-1)/(m+1)`

are equal to opposite sign, then the value of `m`

will be

(A) `(a-b)/(a+b)`

(B) `(b-a)/(a+b)`

(C) `(a+b)/(a-b)`

(D) `(b+a)/(b-a)`"
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