Question

计算：6tan²30°-

3

sin60°-2sin45°

Answer 1

（1）6tan²30°-

3

sin60°-2sin45°
=6×(

3

3

)2-

3

×

3

2

-2×

2

2

=

1

2

-

2

．
故答案为

1

2

-

2

．