(2*(sin(x)^2 + 2*sin((-1))^2))/sin((-1))^2
(2*(sin(x)^2 + 2*sin(-1)^2))/sin(-1)^2
(2*sin(x)^2 + 4*sin(1)^2)/sin(1)^2
2.0*(sin(x)^2 + 2.0*sin(y)^2)/sin(y)^2
2
2*sin (x)
4 + ———
2
sin (y)
2 /3 cos(2*x)
2*csc (y)*|- – cos(2*y) – ——–|
2 2 /
2
2*sin (x)
4 + ———
2
sin (y)
2
2*sin (x)
4 + ———
2
sin (y)
/ 2 2
2*sin (x) + 2*sin (y)/
———————–
2
sin (y)
2 2
2*sin (x) + 4*sin (y)
———————
2
sin (y)