求log(8)9-log(27)32的值,
问题描述:
求log(8)9-log(27)32的值,
答
log(8)9-log(27)32=lg9/lg8-lg32/lg27=2lg3/(3lg2)-5lg2/(3lg3)=2/3log(2)3-5/3log(3)2
求log(8)9-log(27)32的值,
log(8)9-log(27)32=lg9/lg8-lg32/lg27=2lg3/(3lg2)-5lg2/(3lg3)=2/3log(2)3-5/3log(3)2