(a) Use f(t) = a cos (b(t- c)) + d to model these conditions. (b) Evaluate f(1) and f(7). (a) Estimate the values for the constants a, b, c, and d to substitute in the given model. 1) = cos ((t-D)+ (Simplify your answers. Type exact answers, using n as needed.) CoS

Supposed that the monthly average precipitation at a particular location varies sinusoidally between a maximum of 5 inches in January and a minimum of 2 inches in July. Let t=1 correspond to January and t=12 correspond to December.