(-1)^2009×(-1/2)^-2+(根3-π)^0+/1-sin60°/+/-2/+2sin30°-(-根3)^2+(tan45°)^-1
问题描述:
(-1)^2009×(-1/2)^-2+(根3-π)^0+/1-sin60°/+/-2/+2sin30°-(-根3)^2+(tan45°)^-1
提示:/ /代表绝对值
答
原式=-1*(4)+1+1-根号3/2+2+1-3+1=-1-根号3/2