Question

计算2sin60°+(-2)-1-

( 2 - 3 )2

÷(

2

1- 2

)0．

Answer 1

原式=2×

3

2

-

1

2

-（

3

-

2

）÷1
=

3

-

1

2

-

3

+

2

=

2

-

1

2

．