diketahui fungsi y=5-3 cos (1/3x ),tentukan nilai maksimum,nilai minimum dan priode fungsi tolong jawab ka soal nya mau dikumpulkan

jawab

y = 5 - 3 cos (1/3 x)

cos (1/3 x) = 1 --> y = 5 - 3 = 2
cos (1/3 x) = -1 --> y = 5+ 3 = 8
nilai maks = 8 ,
nilai minimum = 2
P = 2pi/(1/3)
P = 6 pi