Thread: What the plot would look like

I have attached the question.

I only need help in the last part of the question.

I have managed to derive that;



However I'm not sure about what this tells me about the plot of the graph nor am I sure of what to do next.

I'd just say that it oscillates between two fixed values, like a normal trigonometric function, since the bottom can't be 0. Differentiate the funtion if need be to find it's maximum and minimum values. Beyond that, the only thing i can recommend is using a computer. See attached pic.