Sin810-cos900+tg585-ctg1845+cos135-sin405

Question

Sin810-cos900+tg585-ctg1845+cos135-sin405

Answer 1

1+1+1-1-0,7-0,7=0,6
sin(810) = 1
cos(900) = −1
tg(585) = 1
ctg(1845°)  = 1
cos(135) = −0,7
sin(405) = 0,7