$\"\"$

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

Rewrite the function as $\"\"$ . \ \

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

$\"\"$

$\"\"$ . \ \

$\"\"$

Find the equation of tangent line to the function at point $\"\"$ . \ \

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

slope is $\"\"$ .

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

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

$\"\"$

$\"\"$ .

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

$\"\"$

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