计算:2倍根号12加3倍根号1又3分之1减根号5又3分之1减3分之2倍根号48

2024-11-29 04:31:32
推荐回答(5个)
回答1:

2√12+3√(1+1/3)-√(5+1/3)-2/3*√48
=4√3+3√(4/3)-√(16/3)-2/3*4√3
=4√3+3*2√(1/3)-4√(1/3)-2/3*4√3
=4√3+6√(1/3)-4√(1/3)-2/3*4√3
=4√3+6√3/3-4√3/3-8/3*√3
=4√3+2√3-4√3/3-8/3*√3
=6√3-4√3
=2√3

回答2:

原式=4根号3+2根号3/3-4根号3/3-8根号3/3=2根号3/3-

回答3:

等于2倍根号3

回答4:

2倍根号3

回答5:

2√12 + 3√4/3 -√16/3 -2√48 /3
=4√3 + 2√3 -4/3 *√3 -8/3 *√3
=(4+2-4/3-8/3) *√3
=2√3