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lg50

=Lg5һ(Lg10ʮLg5) =Lg5һLg5һ1 =0һ1 =һ1

2

(lg5²+lg2*lg50 =(lg5)²+lg2(lg5+lg10) =(lg5)²+lg2lg5+lg2lg10 =lg5(lg5+lg2)+lg2 =lg5lg10+lg2 =lg5+lg2 =lg10 =1 Ϊ ,[];в֮,ָ,һ! ϣһȷ!...

LGҺ42LG50FRѿزΣʱܿҼķڵԴϵNCP1396A5ΧӵǸR128ԭ11KΪ15K輴ɸιϡ11KƬʶ110215KƬʶ1502.

1.6989700043360188047862611052755

lg5ƽlg2lg50 =lg5ƽlg2lg5+1 =lg5ƽlg2lg5+lg2 =lg5(lg5+lg2)+lg2 =lg5+lg2 =1

lg²5+lg2lg50 =lg²5+lg2lg(5²2) =lg²5+lg2(2lg5+lg2) =lg²5+2lg5lg2+lg²2 =(lg5+lg2)² =lg²(52) =1

lg2*lg50=lg2*lg10+lg5=lg2*1+lg5=lg2+1

(lg2)^2+lg2lg50+lg25 =(lg2)^2+lg2(lg2*25)+lg25 =(lg2)^2+lg2(lg2+lg25)+lg25 =2(lg2)^2+lg2lg25+lg25 =2(lg2)^2+2lg2lg5+2lg5 =2lg2(lg2+lg5)+2lg5 =2lg2+2lg5 =2(lg2+lg5) =2(lg10) =2

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