求25个0.4,12个0.5,24个 2.5,11个2连乘的乘积 急用!

题目

求25个0.4,12个0.5,24个 2.5,11个2连乘的乘积 急用!

答案

(0.4)^25*(0.5)^12*(2.5)^24*2^11
=(0.4*25)^24*(0.4)*(0.5*2)^11*(0.5)
=1*(0.4)*1*(0.5)
=0.2