Explain why $(-\infty,-1] \cup[1, \infty)$ is the range of the secant function.
Added by David L.
Step 1
The range of a function is the set of all possible output values that the function can produce. In other words, it is the set of all y-values that the function can take on. The secant function is defined as the reciprocal of the cosine function. That is, sec(x) = Show more…
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