(1g5)平方+1g2×1g50+61g的根号10

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/09 12:28:08
(1g5)平方+1g2×1g50+61g的根号10

(1g5)平方+1g2×1g50+61g的根号10
(1g5)平方+1g2×1g50+61g的根号10

(1g5)平方+1g2×1g50+61g的根号10
(lg5)^2+lg2×lg50+6lg√10
=lg5×lg5+lg2×(lg5+lg10)+3lg10
=lg5×(lg5+lg2)+lg2+3
=lg5×lg(5×2)+lg2+3
=lg5+lg2+3
=4

4

(lg5)^2+lg2×lg50+6lg√10
=(lg5)^2+lg2×(lg5+lg10)+3lg10
=(lg5)^2+lg2×lg5+lg2+3
=lg5×lg(5×2)+lg2+3
=lg5+lg2+3
=4