Chapter 5 - Section 5.2 - Trigonometric Functions of Real Numbers - 5.2 Exercises - Page 417: 23

$sin=0$ $cos=1$ $tan=0$ $csc= Undefined$ $sec= 1$ $cot= Undefined$

$sin$ and $cos$ are given, and so is $csc$. Because $sec$ is the opposite of $cos$, it will also be zero. $tan$ is 0 because of the fact that $sin$ is ($tan=\frac{sin}{cos}$) And $cot$ is undefined because $cot=\frac{1}{tan0}$ (no zero denominator).