计算;(3)-2又根号下0.27*根号下0.03 (4)8又根号下3*2又根号下3

问题描述:

计算;(3)-2又根号下0.27*根号下0.03 (4)8又根号下3*2又根号下3

(3) -2√0.27*√0.03=-2√0.0081=-2*0.09=-0.18;
(4) 8√3*2√3=(8*2)√3*3=16*3=48.