1、√32-√8+√(½)
=√16×2-√4×2+√2/4
=4√2-2√2+½√2
=5/2√2
2、((√48)-(1/3))÷√3
=(4√3-1/3)÷√3
=4-√3/9
3、=(3√3+6√2)/√2
=3√6/2+6