lg2/lg3+lg5/lg3
问题描述:
lg2/lg3+lg5/lg3
答
lg2/lg3+lg5/lg3
=lg2*5/lg3
=1/lg3;
lg2/lg3+lg5/lg3
lg2/lg3+lg5/lg3
=lg2*5/lg3
=1/lg3;