The second derivative of the function fis given by f" (z) = sin (:) -2 cos z. The function f has many critical points, two of which are at z = 0 and z = 6.949. Which of the following statements is true? f has a local minimum at z= 0 and at z = 6.949. f has a local minimum at z =0 and a local maximum at z= 6.949. f has a local maximum at z = 0 and a local minimum atz = 6.949. f has a local maximum at z= 0 and at z = 6.949. https://apclassroom.collegeboard.org/25/assignments?status=assig P Type here to search 5:40 PM 35°F A 4x

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