0.25^2011×4^2012-8^100×0.5^300等于多少?
问题描述:
0.25^2011×4^2012-8^100×0.5^300等于多少?
答
0.25^2011×4^2012-8^100×0.5^300
=(0.25×4)^2011×4-2^300×0.5^300
=1×4-(2×0.5)^300
=4-1
=3