**(a) Find the unit tangent and unit normal vectors T(t) and N(t).**

**(b) Use Formula 9 to find the curvature.**

**r(1) = (t , 1/2t2, t2)**

**Answer:**

**(a) Find the unit tangent and unit normal vectors T(t) and N(t).**

**(b) Use Formula 9 to find the curvature.**

**r(1) = (t , 1/2t2, t2)**

**Answer:**