log2 20-log4 25=?我要步奏.我是个S,B要最详细的
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log220-log425=?我要步奏.我是个S,B要最详细的log220-log425=?我要步奏.我是个S,B要最详细的log220-log425=?我要步奏.我是个S,B要最详细的=lg20/l
log2 20-log4 25=?我要步奏.我是个S,B要最详细的
log2 20-log4 25=?
我要步奏.我是个S,B要最详细的
log2 20-log4 25=?我要步奏.我是个S,B要最详细的
=lg20/lg2-lg25/lg4
=lg20/lg2-2lg5/2lg2
=lg20/lg2-lg5/lg2
=(lg20-lg5)/lg2
=(lg4*5-lg5)/lg2
=(lg4+lg5-lg5)/lg2
=lg4/lg2
=2lg2/lg2
=2
log2 2^2*5-log2^2 5^2=2+log2 5-1/2log2 5^2=2+log2 5-log2 5=2
log2 20-log4 25
log2 20-log4 25=?我要步奏.我是个S,B要最详细的
log2 20-log4 25的答案是
log4(log2^x)=log2(log4^x)求log2^x
log4 (x+2) - log2 (x-1) = 是不是要把log4 转换成log2
log的计算 :log2(20)-log4(25)= log3(2)×log2(5)×log5(3)=?log2[log2(32)-log2(3÷4)+log2log的计算 :log2(20)-log4(25)= log3(2)×log2(5)×log5(3)=?log2【log2(32)-log2(3÷4)+log2(6)】=?lgx+lg(x+15)=2 ..X
log2^x=log4^9
log4 243 - log8 729=?log4 12 - log2 6=?
log2(x-2)=log4(5-x)
log2 20---log2 5+log3 4 * log4 3 等于什么
log2(20)-log2(5)+2log3(2)×log4(3)
log4(x)+log2(x)=3 求X~= 我刚学.
log4 27/log2 3等于多少 log4 27/log2 3等于多少要过程
log的计算log2为底 20-log4为底 25
求值:3^(log3 (25) )+(-C(5,4)^(log2 1)+16^(log4(2sin(π/2))=
log2(0.5)=(?)、log4(0.5)=(?)、-log2(0.5)=(?)、log2(4)=(?)
y=log2(x) * log4(x)的导数帮忙看看这样为什么不行?y=log2(x) * log4(x)=log2(x) *(1/2)log2(r)=(1/2)[log2(r)]^2求导y'=(1/2)*2*[log2(r)]*1/[r(In2)]我觉得这样也对阿 为什么不对?2(Inr)/r(In2)(In4)
log2^x=log4^x,则x=