(lg5)²+lg2×lg50

来源:学生作业帮助网 编辑:作业帮 时间:2024/06/17 12:19:17
(lg5)²+lg2×lg50
x){#'N5eCs ktӁ"6IExd l !azx&5@!mC|*@ (d"$ف<gg

(lg5)²+lg2×lg50
(lg5)²+lg2×lg50

(lg5)²+lg2×lg50
(lg5)²+lg2×lg50
=(lg5)²+lg2×lg(5×10)
=(lg5)²+lg2×(lg5+1)
=(lg5)²+lg2×lg5+lg2
=lg5×(lg2+lg5)+lg2
=lg5+lg2
=1