The function is  and the point on the curve is .

Apply derivative on each side with respect to .

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Quotient rule of derivatives : .

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Slope of the tangent line is derivative of the function at .

Substitute in the derivative function.

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Slope of the tangent line to the curve at the point is .

Find the tangent line.

Point-slope form of line equation : .

Substitute and in point-slope form.

The tangent line equation is .

The tangent line equation is .