25/16的2/1次方+27/8的-1/3次方-2

25/16的2/1次方+27/8的-1/3次方-2+4的log4真数5-ln e的5次方+lg200-lg2

3个回答

=(5/4)＋(2/3)－2＋4的log(2²)[5]－5＋[2＋lg2]－lg2
=(5/4)＋(2/3)－2＋2的[log(2)[5]次方]－5＋2
=(5/4)＋(2/3)－2＋5－5＋2
=(5/4)＋(2/3)
=23/12