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