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In what interval 'm' must lie so that th...

In what interval 'm' must lie so that the root of the equation `x^2-2mx+m^2-1 =0` lie between -2 and 4 ?

A

(0,1)

B

`(-infty,infty)`

C

(-1,3)

D

[-1,3]

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The correct Answer is:
C
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