The vectors from this question will be used again in the next question. Given vectors r = and s = , find: (a) r . s Question 5 7 pts Using the same vectors r and s from the previous question, calculate: [note: (a) was in the previous question] (b) the angle between r and s to the nearest 0.10 (c) the projection of r in the direction of S, projs (r). Give answers accurate to one decimal place. Please show the calculations you used for (b) and (c)