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The abscissae of the points of the curve...

The abscissae of the points of the curve `y=x(x-2)(x-4)`, where tangents are parallel to x-axis, is obtained as :

A

`x=2 pm (2)/(sqrt(3))`

B

`x=1pm (1)/(sqrt(3))`

C

`x=2pm (1)/(sqrt(3))`

D

`x = pm 1`

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The correct Answer is:
A
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