[tex]cot(-30) + tan(600) - csc(-450)[/tex]
[tex]\frac{cos(-30)}{sin(-30)} + \frac{sin(600)}{cos(600)} - \frac{1}{sin(-450)}[/tex]
[tex]\frac{cos(30)}{-sin(30)} + \frac{sin(600)}{cos(600)} - \frac{1}{-sin(450)}[/tex]
[tex]-\frac{cos(30)}{sin(30)} + \frac{sin(600)}{cos(600)} + \frac{1}{sin(450)}[/tex]
[tex]-\frac{\frac{\sqrt{3}}{2}}{\frac{1}{2}} + \frac{-\frac{\sqrt{3}}{2}}{-\frac{1}{2}}} + \frac{1}{1}[/tex]
[tex]-\sqrt{3} + \sqrt{3} + 1[/tex]
[tex]0 + 1[/tex]
[tex]1[/tex]
