计算(lg8+lg1000)*lg5+3(lg2)+lg6(负一次方)+lg0.006

学习 时间:2026-04-06 18:30:21 阅读:4122
计算(lg8+lg1000)*lg5+3(lg2)+lg6(负一次方)+lg0.006

最佳回答

大意的纸鹤

默默的月亮

2026-04-06 18:30:21

=(3lg2+3lg10)lg5+3(lg2)^2-lg6+lg6-3lg1 =(3lg2+3lg2+3lg5)lg5+3(lg2)^2 =6lg2lg5+3(lg5)^2+3(lg2)^2 =3 ( (lg2)^2+2lg2lg5+(lg2)^2 ) =3 (lg2+lg5)^2 =3

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  • 专一的戒指
    回复
    2026-04-06 18:30:21

    =(3lg2+3lg10)lg5+3(lg2)^2-lg6+lg6-3lg1 =(3lg2+3lg2+3lg5)lg5+3(lg2)^2 =6lg2lg5+3(lg5)^2+3(lg2)^2 =3 ( (lg2)^2+2lg2lg5+(lg2)^2 ) =3 (lg2+lg5)^2 =3

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