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Question
Find the range of the following functions given by `|x - 4|/(x - 4)`
Solution
f(x) = `|x - 4|/(x - 4)`
= `{{:((x - 4)/(x - 4) = 1",", x > 4),((-(x - 4))/(x - 4) = -1",", x < 4):}`
Thus the range of `|x - 4|/(x - 4) = {1, -1}`.
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