如何计算2/3√2-2√1/2+√8-1/3√18
问题描述:
如何计算2/3√2-2√1/2+√8-1/3√18
答
2/(3√2)- 2√(1/2) + √8 - (1/3)√18
= (√2/2) - √2 + 2√2 - √2
= √2/2