sin(-1320°）*cos1110°+cos（-1020°）sin750°+tan（-405°）=sin120°cos30°+cos60°sin30°-tan45°=sin60°cos30°+cos60°sin30°-tan45°=3/4+1/4-1=0sin25π/6+cos25π/3+tan25π/4+sin7π/3*cos13π/6-co...