(a) The equation of the curve is   and the point is .

The slope of an tangent is the derivative of the curve at given point.

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Quotient rule of differentiation:  .

The slope of the tangent line at  :

The equation of the tangent at   :

Point - Slope form: .

Substitute  and  in above formula.

The equation of the tangent at  is .

(b)

The graph of the function and the tangent line.

(a) The equation of the tangent at  is .

(b)

Graph the equation.

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