If $\displaystyle \theta={\frac{{{2}\pi}}{{{3}}}}$, then

$\displaystyle {\sin{{\left(\theta\right)}}}$ equals Preview Question 6 Part 1 of 4  


$\displaystyle {\cos{{\left(\theta\right)}}}$ equals Preview Question 6 Part 2 of 4  


$\displaystyle {\tan{{\left(\theta\right)}}}$ equals Preview Question 6 Part 3 of 4  


$\displaystyle {\sec{{\left(\theta\right)}}}$ equals Preview Question 6 Part 4 of 4