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A tangent is drawn to the curve y=8/x^2...

A tangent is drawn to the curve `y=8/x^2` in XY-plane at the point `A(x_0, y_0)`, where `x_0=2` and the tangent cuts the X-axis at a point B. Then `bar(AB).bar(OB) =`

A

2

B

1

C

0

D

3

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The correct Answer is:
D
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