Answer:
Step-by-step explanation:
cos theta is 2/3 because cos means reciprocal of sec
option C
[tex]sec\theta = \frac{1}{cos\theta}\\\\\frac{3}{2}= \frac{1}{cos\theta}\\\\cos\theta = \frac{1}{\frac{3}{2}} = \frac{2}{3}[/tex]
