Tolong bantu ya kak, trigonometri kelas 10

[tex] \frac{ \sin( \frac{ - \pi}{6} ) + \csc( \frac{\pi}{4} ) }{ \cot( \frac{3}{2}\pi ) - \cos(2\pi) } \\ = \frac{ \sin( \frac{ - 180}{6} ) + \csc( \frac{180}{4} ) }{ \cot( \frac{3}{2}.180 ) - \cos(2(180)) } \\ = \frac{ \sin( - 30) + \csc(45) }{ \cot(270) - \cos(360) } \\ = \frac{ - \sin(30) + \csc(45) }{ \cot(270) - \cos(360) } \\ = \frac{ - \frac{1}{2} + \sqrt{2} }{ 0 -1 } \\ = \frac{ - \frac{1}{2} + \sqrt{2} }{ - 1} \\ = \frac{1}{2} - \sqrt{2} [/tex]
Semoga dapat dipahami