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0:00 – Parameter a (sine function) 5:22 – Parameter b (sine function) 9:12 – Parameter a (sine function) 11:36 – Parameter d (sine function) 14:43 – f(x) = a (x) = a sin[b(x + c)] + d 16:10 – f(x) = a (x) = a cos[b(x + c)] + d