Exercise 3. Let f (x) = tan m. tanx (a) Compute 9133(1) :16 (b) Find L(m) at a = 0. E (c) Use L($) to approximate tan 4 ((1) Estimate the error in the above approximation. Exercise 4. Let f (x) = cos x. (a) Find L(a:) at a = 0. (b) Briey explain Why the above approximation is problematic. (c) Use L(m) to approximate cos(.1). (0) Estimate the error in the above approximation