(1)1.1^0+(3在上面)3√216-0.5^-2+lg25+2lg2 (2)log3×[(4在上面)4√27/3]+lg25+lg4+[7^(log7^2)]

2024-12-02 03:15:29
推荐回答(1个)
回答1:

(1)1.1^0+(3在上面)3√216-0.5^-2+lg25+2lg2
=1+6-4+lg(25*4)
=1+6-4+2
=5

(2)log3×[(4在上面)4√27/3]+lg25+lg4+[7^(log7^2)]
=log3((3^(3/4))/3)+lg(25*4)+2
=log3(3^(-1/4))+2+2
= -1/4+4=15/4