For the acute angle $\displaystyle {x}$, $\displaystyle {\sin{{x}}}=\frac{{8}}{{21}}$. Find each of the following:

(i)  $\displaystyle {\cos{{x}}}=$ 

(ii) $\displaystyle {\tan{{x}}}=$

(iii)  $\displaystyle {\csc{{x}}}=$

(iv)  $\displaystyle {\sec{{x}}}=$

(v)  $\displaystyle {\cot{{x}}}=$