The graphs of two functions, f and g, are shown below. 4 f(x) V1.57 V3.14V4.71V6.28v -2 a. The solid, blue graph is the graph of f. Write a function formula for f. f(x) |* Preview b. The dashed, red graph is the graph of g. Write a function formula for g. g(x) = 1.5cos(1.57)+2 Preview 其

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