1.√12-√1/2-2√1/3

问题描述:

1.√12-√1/2-2√1/3
2.√18+1/2√12-6√1/2+4√0.75

1.√12-√1/2-2√1/3
=2√3-½√2-(2/3)√3
=(4/3)√3-½√2
2.√18+1/2√12-6√1/2+4√0.75
=3√2+√3-3√2+2√3
=3√3