2log5 10+log5 0.25=?
问题描述:
2log5 10+log5 0.25=?
答
2log5 10+log5 0.25 =log5 100+log5 0.25 =log5 (100×0.25) =log5 25 =2
2log5 10+log5 0.25=?
2log5 10+log5 0.25 =log5 100+log5 0.25 =log5 (100×0.25) =log5 25 =2