$\"\"$

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The function is $\"\"$ and the point is $\"\"$ .

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

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$\"\"$

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

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$\"\"$

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Apply power property of derivative : $\"\"$ .

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$\"\"$

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Apply formulas : $\"\"$ and $\"\"$ .

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$\"\"$

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Slope $\"\"$ .

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$\"\"$

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

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$\"\"$

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Slope of the tangent line $\"\"$ .

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The point-slope form of a line equation is $\"\"$ .

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

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$\"\"$

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Therefore, the tangent line equation is $\"\"$ .

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$\"\"$

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