1、原式=(tan45°)^2-√[(1-cos30°)^2=1-(1-√3/2)=1-1+√3/2=√3/2.
2、原式=3|√3/3-1|-sin35°/sin35°+2*√3/2
=3-√3-1+√3
=2.
3、-1-8+1+|3√3-4√3|
=-8+√3,
1、原式=(tan45°)^2-√[(1-cos30°)^2=1-(1-√3/2)=1-1+√3/2=√3/2.
2、原式=3|√3/3-1|-sin35°/sin35°+2*√3/2
=3-√3-1+√3
=2.
3、-1-8+1+|3√3-4√3|
=-8+√3,