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log2 3 =log 1/2 1/3 为什么 怎么算的?(log3/1(2)、log3/1(2/1)、log2/1(3)、log2/1(3/1

log2 3 =log 1/2 1/3 为什么 怎么算的?(log3/1(2)、log3/1(2/1)、log2/1(3)、log2/1(3/1)的大小关系)

log3/1(2)、log3/1(2/1)、log2/1(3)、log2/1(3/1)的大小关系

log3/1(2)、log3/1(2/1)、log2/1(3)、log2/1(3/1)的大小关系

log1/3(2)

=log3(2)/log3(1/3)

=-log3(2)

log1/3(1/2)

=log3(1/2)/log3(1/3)

=log3(2)

log1/2(3)

=log3(3)/log3(1/2)

=-1/log3(2)

log 1/2(1/3)

=log3(1/3)/log3(1/2)

=1/log3(2)

由于0<log3(2)<1

所以

1/log3(2)>log3(2)>-log3(2)>-1/log3(2)

log1/2(1/3)>log1/3(1/2)>log1/3(2)>log1/2(3)

log以2为底3的对数是怎么算的

-log以2为底3的对数次方log以2为底1/3的对数次方

1/2log以2为底3的对数,怎么求?

解:1/2*log(2)3

      =1/2*lg3/lg2

      =1/2*0.4771/0.3010

      =1/2*1.5849624999

      =0.79248125

log2 3的对数是多少

(4)的log2(底数)3(对数)次幂

= [2的log2(底数)3(对数)次幂] ^2

= 3^2

= 9

(lg5)的平方+lg2乘以lg5+(4)的log2(底数)3(对数)次幂

= lg5(lg5+lg2) + 9

= lg5 + 9