2*sin(180 – (-1/2))^2 + (2*cos(90 – (-1/2)))*cos((-1/2))^2
2*sin(180 – (-1)/2)^2 + (2*cos(90 – (-1)/2))*cos(-1/2)^2
2*sin(361/2)^2 + 2*cos(1/2)^2*cos(181/2)
2.0*sin(180 – a)^2 + 2.0*cos(a)^2*cos(90 – a)
2 2
2*sin (-180 + a) + 2*cos (a)*cos(-90 + a)
2 2
2*sin (180 – a) + 2*cos (a)*cos(90 – a)
2 2
2*sin (180 – a) + 2*cos (a)*cos(-90 + a)
/ 2 2
2*sin (-180 + a) + cos (a)*cos(-90 + a)/
2 2
2*(cos(180)*sin(a) – cos(a)*sin(180)) + 2*cos (a)*(cos(90)*cos(a) + sin(90)*sin(a))