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For what value of m will the equation (x...

For what value of m will the equation `(x^2-bx)/(ax-c)=(m-1)/(m+1)` have roots equal in magnitude but opposite in sign?

A

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

B

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

C

c

D

`(1)/(c)`

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The correct Answer is:
A
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