[tex]y = 3tan(x + 30)[/tex]
[tex]y = 3(\frac{tan(x) + tan(30)}{1 - tan(x)tan(30)})[/tex]
[tex]y = \frac{3(tan(x) + tan(30))}{1 - tan(x)tan(30)}[/tex]
[tex]y = \frac{3(tan(x)) + 3(tan(30))}{1 - tan(x)tan(30)}[/tex]
[tex]y = \frac{3tan(x) + 3tan(30)}{1 - tan(x)tan(30)}[/tex]
