28. Suppose vectors u = 2, 1 and v = 3, 2.

a. Find 3u v .

b. Find the direction (in degrees) of u from the positive -axis.

c. Find the angle (in degrees) between u and v .

d.Find the component of u along v .

e. Find the projection of u onto v .

f. Decompose u into u₁ and u₂, where u₁ is parallel to v and u₂ is orthogonal to v .

29. Are u =1,3and v =2, 1orthogonal? Show your reasoning.