2 Exercise 1: Are f (.1) = cos 2r 2005 :r. and 9(1'.) 2 C05 21" + 25in2 3: linearly independent? Exercise 2: Determine Whether the given functions are linearly independent {.I.' Ely-H, (Em4} Exercise 3:Let f1(:r) = T2 and f2(:r.) = m|m| 1. Show that. W'(f1(:r.), f2(:r)) = 0 for every real number. What do you conclude ? (Justify your answer). 2. Determine whether f1 and f2 are linearly dependent on (00, +00) (Justify your answer)