Question: (a) By graphing the function f (x) = (tan 4x)/x and zooming in toward the point where the graph crosses the y-axis, estimate the value

(a) By graphing the function f (x) = (tan 4x)/x and zooming in toward the point where the graph crosses the y-axis, estimate the value of lim_x→0 f (x).

(b) Check your answer in part (a) by evaluating f (x) for values of x that approach 0.

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