Do you see why the domain is and ?
The range will be between these two points
This is quite a subtle problem, in my opinion. You must solve the problem in two fairly complicated overall steps. LetOriginally Posted by prat
You must first find the domain and range of this function. That's step 1. Step 2 is to use the range of this function as the domain of the tangent function, and see if there are any further restrictions. Can you see your way forward?