sin60°-cos60°+2sin30°cos30°
＝½√3－½+2×½×½√3
＝½√3－½＋½√3
＝-½＋√3
√3×sin60°-√2×cos45°＋(√8³)
=√3×½√3-√2×½√2＋16√2
=3/2－1＋16√2
=½＋16√2