Use the Given Function Value(s),and Trigonometric Identities (Including the Cofunction $\sec \theta = 9$

question 51

Multiple Choice

Use the given function value(s) ,and trigonometric identities (including the cofunction identities) ,to find the indicated trigonometric functions.? $\sec \theta = 9$ ? cos ?
?

• A) \(\cos \theta = 9\)
• B)? \(\cos \theta = \frac { 1 } { 9 }\)
• C)? \(\cos \theta = - \frac { 1 } { 9 }\)
• D)? \(\cos \theta = - 9\)
• E)? \(\cos \theta = 0\)

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