已知lg2=0.3010,lg3=0.4771,求lg1.08得值
问题描述:
已知lg2=0.3010,lg3=0.4771,求lg1.08得值
答
=lg108-lg100
=lg(2^2*3^3)-2
=2lg2+3lg3-2
=2*0.3010+3*0.4771-2
=0.0333
答
lg1.08=lg108/100
=lg108-lg100
=lg(2^2*3^3)-2
=2lg2+3lg3-2
=2*0.3010+3*0.4771-2
=0.0333