(1)0.92×1.41+0.92×8.59 (2)×-× (3)1.3×11.6-1.6×1.3 (4)×11.6+18.4×
计算:sin600cos300+
.计算:-2+(π-1)0+tan60°-;
(2-3)+(2+)(2-);
计算: (1)+6-2;