You should KNOW

1. The definitions of the tangent, cotangent, secant, and cosecant functions. 

2. The domains, ranges, and periods of these functions and the appearance of their graphs, especially the location of asymptotes, without a calculator.

You should be ABLE TO

1. Determine values of tan,cot,sec and csc without a calculator for multiples of 30, 45, or 60 degrees, and with a calculator for 
other angles.

2. Sketch the graph of the tangent and secant functions over several periods.  

3. Determine the periods, domains and ranges for functions obtained from tan ,cot, sec, or csc by stretching and shifting.