#### Answer

$\frac{c}{a}$

#### Work Step by Step

$Cosβ$ is Given and we need to find $Secβ$.
Secant is the reciprocal of Cosine.
$Cosβ=\frac{a}{c}$
Therefore, $Secβ=\frac{c}{a}$

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$\frac{c}{a}$

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