Answer
$\sin{t}$;
$\cos{t}$;
$\tan{t}$
Work Step by Step
Cosecant and sine are reciprocals of each other so $\dfrac{1}{\csc{t}}=\sin{t}$.
Secant and cosine are reciprocals of each other so $\dfrac{1}{\sec{t}}=\cos{t}$.
Cotangent and tangent are reciprocals of each other so $\dfrac{1}{\cot{t}}=\tan{t}$.
Thus, the missing expressions in the given statements (in order) are:
$\sin{t}$;
$\cos{t}$;
$\tan{t}$
