计算√[lg^2(1/3)-4lg3+4]
问题描述:
计算√[lg^2(1/3)-4lg3+4]
答
√[lg^2(1/3)-4lg3+4]
=√[lg^2(3)-4lg3+4]
=√(lg3-2)^2
=Ilg3-2I
=2-lg3