please answer questions 1-4

1. Letahe the vector from (4.3) to (-2,1a=:=er, nd 0,13, and N if B = [2, 9), E = [1. T), and MN is a in stande position. 2. If a = 2i + k and b = 3j + 2k. nd a unit vector u that is opposite in direction to v = 2a b and a vector w having the same direction as v with a norm of 4. 3. Given vectors u = {uhng}. v = (131,152) E 11112. and real scalar k. prove that k(u+v] = ku+ lav. 4. Without actually:r nding the angle 6' between each pair of vectors. determine the following. Show how you arrive at your conclusion. (i) d is acute, right. or obtuse (ii) the vectors are parallel. (iii) the value of 19. (a) u=-3i+j, v=2i4j