$\"\"$

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The equation is $\"\"$ .

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The tangent line passes through the point $\"\"$ .

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The equation is $\"\"$ .

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Apply derivative on each side with respect to $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ .

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Let the curve has a point of tangency at $\"\"$ .

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Slope of the tangent line is the derivative of the function at $\"\"$ .

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$\"\"$

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$\"\"$

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The line equation is $\"\"$ .

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The tangent line passes through the point $\"\"$ and $\"\"$ .

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$\"\"$ .

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$\"\"$ .

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Substitute $\"\"$ in the equation $\"\"$ at the point $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ .

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Substitute $\"\"$ in the function $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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The point is $\"\"$ .

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Substitute $\"\"$ and $\"\"$ in the equation $\"\"$ .

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$\"\"$

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The slope is $\"\"$ .

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The point $\"\"$ and $\"\"$ .

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The equation is $\"\"$ .

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$\"\"$

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The tangent line equation is $\"\"$ .

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$\"\"$

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The point is $\"\"$ .

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Substitute $\"\"$ and $\"\"$ in the equation $\"\"$ .

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$\"\"$

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The slope is $\"\"$ .

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The point $\"\"$ and $\"\"$ .

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The equation is $\"\"$ .

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$\"\"$

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The tangent line equation is $\"\"$ .

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$\"\"$

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The tangent line equations are $\"\"$ and $\"\"$ .