Use the Given Values to Evaluate (If Possible) Three Trigonometric $\cos \phi , \sin \phi , \tan \phi$

question 141

Multiple Choice

Use the given values to evaluate (if possible) three trigonometric functions $\cos \phi , \sin \phi , \tan \phi$ .
$\sec \phi = \frac { 3 } { 4 } , \csc \phi = \frac { - 3 \sqrt { 5 } } { 5 }$

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