Use the Appropriate Reciprocal Identity to Find the Function Value $\cos \theta$

question 81

Multiple Choice

Use the appropriate reciprocal identity to find the function value. Rationalize the denominator if necessary.
- $\cos \theta$ , if $\sec \theta = - 9.5$

• A) \(\frac { 2 } { 19 }\)
• B) \(- \frac { 19 } { 2 }\)
• C) \(\frac { 17 } { 19 }\)
• D) \(- \frac { 2 } { 19 }\)

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