Enter T or F depending on whether the statement is true or false (You must enter T or F -- True and False will not work.)

 1. $\tan (x) = \tan (-x)$ for all $x$ in the domain of $\tan (x)$
 2. $\sec (x)$ and $\tan (x)$ are undefined for the same values of $x$
 3. The range of $\tan (x)$ is all real numbers
 4. $\tan (x)$ and $\cot x$ are odd functions