How do you graph y=3cot(1/2x)-2?

1 Answer
Aug 11, 2018

See explanation and graph.

Explanation:

#y = 3 cot (x/2) - 2,

x ne ( asymptotic zero of the denominator sin (x/2) ) 2kpi,

k = 0, +-1, +-2, +-3, ...

The period is the period of tan ( x/2) = pi/(1/2) = 2pi.

Vertical shift for the axis is - , and so, the axis is

y = - 2.

See graph, depicting all these aspects.
graph{((y+2)sin (x/2) - cos (x/2))(y+2+0x)(x-2pi+0.0001y)(x+2pi+0.0001y)(x+0.0001y) = 0[-20 20 -12 8] }