moodle+hku+login
@阎芬1096：(log32+log92)?(log43+log83)=5454 -
柳官15662126268…… (log32+log92)?(log43+log83)=(log32+1 2 log32)?(1 2 log23+1 3 log23)=log323 2 ?log235 6 =3 2 *5 6 =5 4 故答案为:5 4
@阎芬1096：计算:lg二次根号100 +log2^ (4^3 *2^5) 及急急急急急急,有谁会啊,请帮忙,谢谢 -
柳官15662126268…… lg√100 +log₂ (4^3 *2^5)=lg10+log₂(4^3)+log₂(2^5)=1+3log₂4 + 5log₂2=1+6+5=12
@阎芬1096：log4{2long3[1+long2(1+3long2x)]}=1/2 -
柳官15662126268…… log4{2log3[1+log2(1+3log2x)]}=1/22log3[1+log2(1+3log2x)]=2 log3[1+log2(1+3log2x)]=11+log2(1+3log2x)=3 log2(1+3log2x)=21+3log2x=43log2x=3 log2x=1 x=2
@阎芬1096： - 5log9(4)+log3(32/9) - (1/64)^( - 2/3),怎么化简,要步骤谢谢. -
柳官15662126268…… -5log9(4)+log3(32/9)-(1/64)^(-2/3)=-5log3(2)+log3(32)-log3(9)-[(1/4)^3*(-2/3)]=-5log3(2)+log3(32)-log3(9)-[(1/4)^3*(-2/3)]=log3[2^(-5)]+log3(2^5)-2-16=0-2-16=-18 有疑问,请追问;若满意,请采纳,谢谢!
@阎芬1096：linux系统中在查看systemout.log时log中有许多内容,用什么命令可以快速的跳到想要的信息那里? -
柳官15662126268…… 用gedit打开,ctrl+f搜索一下你想要的内容
@阎芬1096：4log(2╱3)∧3+2log(2╱3)∧4+log(2╱3)∧20 - log(2╱3)∧30 =? -
柳官15662126268…… 4log(2╱3)∧3+2log(2╱3)∧4+log(2╱3)∧20-log(2╱3)∧30 =12log(2╱3)+8log(2╱3)+20log(2╱3)-30log(2╱3)=(12+8+20-30)log(2/3)=10log(2/3)
@阎芬1096：logX=log12+log25 - 2log6怎么算 -
柳官15662126268…… logX=log12+log25-2log6 logX=log12+log25-log36 logX=log(12*25÷36) logX=log(25/3) 所以X=25/3
@阎芬1096：(log2 3+log4 9+log8 27+...+log2^n 3^n)log9 32的N次方根 -
柳官15662126268…… log4 9=2lg3/2lg2 =lg3/lg2=log2 3 log2 3+log4 9+log8 27+...+log2^n 3^n=nlog2 3=nlg3/lg2 log9 32的N次方根(log2 3+log4 9+log8 27+...+log2^n 3^n)log9 32的N次方根=(1/n)(5lg2/2lg3)*nlg3/lg2=5/2
@阎芬1096：若a>1,b>1,c>1则logab+logbc+logca大于等于 -
柳官15662126268…… 由均值不等式,原式=lnb/lna+lnc/lnb+lna/lnc>=3( lnb/lna*lnc/lnb*lna/lnc)^3=3当且仅当lnb/lna=lnc/lnb=lna/lnc时等号...
@阎芬1096：(log2(5)+log4(125))(log3(2)/log√3(5))怎么解? -
柳官15662126268…… (log2(5)+log4(125))(log3(2)/log√3(5)) =(log2(5)+3/2 log2(5))(2log3(2)/log3(5))=5/2 log2(5)*2log5(2)=5 log2(5)*1/log2(5)=5
柳官15662126268…… (log32+log92)?(log43+log83)=(log32+1 2 log32)?(1 2 log23+1 3 log23)=log323 2 ?log235 6 =3 2 *5 6 =5 4 故答案为:5 4
@阎芬1096：计算:lg二次根号100 +log2^ (4^3 *2^5) 及急急急急急急,有谁会啊,请帮忙,谢谢 -
柳官15662126268…… lg√100 +log₂ (4^3 *2^5)=lg10+log₂(4^3)+log₂(2^5)=1+3log₂4 + 5log₂2=1+6+5=12
@阎芬1096：log4{2long3[1+long2(1+3long2x)]}=1/2 -
柳官15662126268…… log4{2log3[1+log2(1+3log2x)]}=1/22log3[1+log2(1+3log2x)]=2 log3[1+log2(1+3log2x)]=11+log2(1+3log2x)=3 log2(1+3log2x)=21+3log2x=43log2x=3 log2x=1 x=2
@阎芬1096： - 5log9(4)+log3(32/9) - (1/64)^( - 2/3),怎么化简,要步骤谢谢. -
柳官15662126268…… -5log9(4)+log3(32/9)-(1/64)^(-2/3)=-5log3(2)+log3(32)-log3(9)-[(1/4)^3*(-2/3)]=-5log3(2)+log3(32)-log3(9)-[(1/4)^3*(-2/3)]=log3[2^(-5)]+log3(2^5)-2-16=0-2-16=-18 有疑问,请追问;若满意,请采纳,谢谢!
@阎芬1096：linux系统中在查看systemout.log时log中有许多内容,用什么命令可以快速的跳到想要的信息那里? -
柳官15662126268…… 用gedit打开,ctrl+f搜索一下你想要的内容
@阎芬1096：4log(2╱3)∧3+2log(2╱3)∧4+log(2╱3)∧20 - log(2╱3)∧30 =? -
柳官15662126268…… 4log(2╱3)∧3+2log(2╱3)∧4+log(2╱3)∧20-log(2╱3)∧30 =12log(2╱3)+8log(2╱3)+20log(2╱3)-30log(2╱3)=(12+8+20-30)log(2/3)=10log(2/3)
@阎芬1096：logX=log12+log25 - 2log6怎么算 -
柳官15662126268…… logX=log12+log25-2log6 logX=log12+log25-log36 logX=log(12*25÷36) logX=log(25/3) 所以X=25/3
@阎芬1096：(log2 3+log4 9+log8 27+...+log2^n 3^n)log9 32的N次方根 -
柳官15662126268…… log4 9=2lg3/2lg2 =lg3/lg2=log2 3 log2 3+log4 9+log8 27+...+log2^n 3^n=nlog2 3=nlg3/lg2 log9 32的N次方根(log2 3+log4 9+log8 27+...+log2^n 3^n)log9 32的N次方根=(1/n)(5lg2/2lg3)*nlg3/lg2=5/2
@阎芬1096：若a>1,b>1,c>1则logab+logbc+logca大于等于 -
柳官15662126268…… 由均值不等式,原式=lnb/lna+lnc/lnb+lna/lnc>=3( lnb/lna*lnc/lnb*lna/lnc)^3=3当且仅当lnb/lna=lnc/lnb=lna/lnc时等号...
@阎芬1096：(log2(5)+log4(125))(log3(2)/log√3(5))怎么解? -
柳官15662126268…… (log2(5)+log4(125))(log3(2)/log√3(5)) =(log2(5)+3/2 log2(5))(2log3(2)/log3(5))=5/2 log2(5)*2log5(2)=5 log2(5)*1/log2(5)=5
