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Review & Preview 6-141. Find a cosine function that has a maximum at (2, 5) and a minimum at (4, 2). 6-142. If sin x = - 4 , x E [n, "], find exact values for the five other trigonometric functions without finding x. 6-143. y = sin x, y = cos x, and y = tan x are all functions that have restricted ranges. Give the range of each function. 6-144. Explain how tan x is different from tan x V8m2 6-145. Solve - = 6. 12m