# How do you graph #y=cosx+tan(2x)#?

##### 1 Answer

Dec 28, 2016

Socratic graph for two periods

#### Explanation:

The period of cos x is

So, the period of cos x + tan 2x is

x = an odd mutiple of

The inserted graph is for a double period

x = 0 is the divider, for this double-period graph.

y-intercept is 0.752, nearly, from cos x + tan (2x) = 0.

graph{cos x + tan (2x) [-6.28, 6.28, -5, 5]}