Graphs of the Other Trigonometric Functions · Hard problem

$2\csc\!\left(2x-\dfrac{\pi}{2}\right)+2$

$2\csc\!\left(2x-\dfrac{2}{\pi}\right)+1$

$2\csc\!\left(2x-\dfrac{\pi}{2}\right)+1$

$2\csc\!\left(2x-\dfrac{\pi}{2}\right)-1$