Equations of Tangent and Normal
For tangent at :
For normal at :
Example: Find Tangent and Normal
Find the equations of tangent and normal to at .
Tangent from External Point
Example: Tangent from External Point
Find the tangent to from the point .
Angle Between Two Curves
where and are slopes of tangents to the curves at their point of intersection.
Example: Angle Between Curves
Find the angle between and at their intersection.