题目内容
计算:
(1)log5[log2(log39)];
(2)÷.
计算下列各式:?
(1)log()(5+2);?
(2);?
(3);?
(4)lg4+lg9+2
(1)loga2+loga(a>0,a≠1)
(2)log318-log32
(3)lg-lg25
(4)2log510+log50.25
(5)2log525+3log264
(6)log2(log216)