\ \

Step 1 :  

The function is and the point is .

The slope of the tangent line is equal to the derivative of the function at .

Apply derivative on each side with respect to x. 

Step 2 :

Slope at the point :

Substitute  in  

The slope is .  

Step 3 :   

Point-slope form of line equation

Substitute point and slope in the above equation.  \ \

Tangent line equation is 

Solution : 

Tangent line equation is