Section III: [5 marks] Linearization Write detailed solutions on exam paper and submit copies of your written solutions to Crowdmark Section 3. Question 12 (0.00001 points) cos(x ) Let f (ac) V1 + 7x - 22 (a) Find the derivative f' (7). (b) Find the linear approximation of the function y=f(x) at @ = 7. (c) Use the linearization from part (b) to find an approximated value f ( 3.1 ). Round your answer to four decimal places. I will upload my answer document to Crowdmark at the end of the exam supervised by the Examity proctor