(2lg2+lg3)/(1+1/2lg0.36+1/3lg8)+㏒2(1+根下2+根下3)+㏒2(1+根下2-根下3)-㏒23㏒34

来源:学生作业学帮网 编辑:学帮网 时间:2024/05/17 03:40:11

(2lg2+lg3)/(1+1/2lg0.36+1/3lg8)+㏒2(1+根下2+根下3)+㏒2(1+根下2-根下3)-㏒23㏒34

(2lg2+lg3)/(1+1/2lg0.36+1/3lg8)+㏒2(1+根下2+根下3)+㏒2(1+根下2-根下3)-㏒23㏒34
=(2lg2+lg3)/(1+lg0.6+lg2)+㏒2【(1+根下2+根下3)(1+根下2-根下3)】-lg3/lg2*lg4/lg3
=(2lg2+lg3)/(lg6+lg2)+㏒2【(1+根下2)²-3】-lg3/lg2*2lg2/lg3
=(2lg2+lg3)/(2lg2+lg3)+㏒2(2根下2)-2
=1+3/2-2
=0.5