Which one is the correct answer

Answer:
[tex] \frac{ \sin( \theta) }{ \cos(\theta) } = \frac{4}{3} \\ \cos(\theta ) = \frac{3}{4} \sin(\theta) \\ \sin(\theta) = - \frac{4}{5} \\ \cos(\theta ) = ( \frac{3}{4})( - \frac{4}{5}) \\ \cos(\theta ) = - \frac{3}{5} [/tex]