更新时间2019-07-19 05:46:01
解:
2√12+3√(1+1/3)-4√(1/3)-2√48/3
=4√3+6√(1/3)-4√(1/3)-8√3/3
=4√3+2√3-4√3/3-8√3/3
=6√3-4√3
=2√3
2√12+3√(1+1/3)-4√(1/3)-(2/3)√48
=2(2√3)+3[(2/3)√3]-4[(1/3)√3]-(2/3)(4√3)
=4√3+2√3-(4/3)√3-(8/3)√3
=[(4+2)-(4/3+8/3)]√3
=(6-4)√3
=2√3
完整的题目只能看到计算①
解:原式=4根号3+2根号3-3分之4根号3-3分之8根号3
=2根号3
4√3+6√3-4/3√3-8/3√3
=(4√3+6√3)-(4/3√3+8/3√3)
=10√3-4√3
=6√3