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# Cofunction Identity Involving the $\sec(\theta)$

TRIG-3HGYSX

Which of the following equations correctly uses the Cofunction Identity of the $\sec(\theta)$?

A

$\sec(\theta) = \sin(90 - \theta)$

B

$\sec(\theta) = \csc(90 - \theta)$

C

$\sec(\theta) = \cos(90 - \theta)$

D

$\sec(\theta) =\tan(90 - \theta)$