What is the domain of $sec x$ $sec x$ ?

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What is the domain of $sec x$ $sec x$ ?

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Answer 1 · 2015-02-19T08:11:27

$sec x$ $secx$ is basically nothing more than $\frac{1}{cos x}$ $1/cosx$ . Therefore, $sec x$ $secx$ would simply be undefined wherever $cos x = 0$ $cosx = 0$ . Those points are at $\frac{π}{2} and \frac{3 π}{2}$ $pi/2 and (3pi)/2$ . Therefore, the domain is simply all reals except those two.

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What is the domain of $sec x$ $sec x$ ?

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