a=log1/2^3,b=log1/3^2,c=(1/2)^0.3,则abc大小关系
问题描述:
a=log1/2^3,b=log1/3^2,c=(1/2)^0.3,则abc大小关系
答
12378543.
答
a=log1/2^3,
=-3log2=-3*0.301=-0.903
b=log1/3^2,
=-2log3=2*0.4771=-0.9544
c=(1/2)^0.3
=-2^0.3=-8(开10次方)= -1.231
a>b>c