Question

Sketch the graph of the following functions:
y= 2 cot 2x

Answer 1

To obtain the graph of y = 2 cot 2x we frist draw the graph first draw the graph of y =cot x in the interval $(0,\pi )$ and then divide the x-coordinates of the points where it crosses x-axis by 2. we then streatch the graph vertically by a factor of 2.