Let f -LRB- x -RRB- = min -LCB- tan x , cot x -RCB- where x belongs to the set of real numbers . What is the range , fundamental period , points of discontinuity and points of non-differentiability of f -LRB- x -RRB- ?
What is -LSB- math -RSB- f -LRB- x -RRB- -LSB- / math -RSB- in the math problem -LSB- math -RSB- f -LRB- x -RRB- = x + f -LRB- 1 + \ frac -LCB- 1 -RCB- -LCB- x -RCB- -RRB- ? -LSB- / math -RSB-