Question reads- Find the acute angle between the curves at their points of intersection. (The angle between two curves is the angle between their tangent lines at the point of intersection.)
This is a calculus course, unit is vectors and section is dot product.
I understand how to find the angle between two vectors. However, the derivative of $y=x^3$ (and thus the tangent line) is $y=x^2$ and I don't know how to represent that as a vector. Thanks!