Use the Fundamental Identities to Find the Value of the Trigonometric

question 264

Multiple Choice

Use the fundamental identities to find the value of the trigonometric function.
-Find $\cos \theta$ if $\tan \theta = \frac { 2 } { 5 }$ and $\theta$ is in quadrant III.

• A) \(\frac { \sqrt { 33 } } { 4 }\)
• B) \(- \frac { 5 \sqrt { 29 } } { 29 }\)
• C) \(\frac { 4 } { 5 }\)
• D) \(- \frac { \sqrt { 11 } } { 6 }\)

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