6 The diagram shows the curve \(y = \frac { \ln x } { x }\).
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The curve crosses the \(x\)-axis at \(A\) and has a stationary point at \(B\).
- State the coordinates of \(A\).
- Find the coordinates of the stationary point, \(B\), of the curve, giving your answer in an exact form.
- Find the exact value of the gradient of the normal to the curve at the point where \(x = \mathrm { e } ^ { 3 }\).