(lg5)^2-(lg2)^2+2lg√10/5+0.25^-1/2 X 1/64的立方根
问题描述：
(lg5)^2-(lg2)^2+2lg√10/5+0.25^-1/2 X 1/64的立方根
答
(lg5)^2-(lg2)^2+2lg√10/5+0.25^-1/2 X 1/64的立方根
=(lg5+lg2)(lg5-lg2)+1/5+0.25^-1/2x1/4
=1x(1-2lg2)+1/5-1/16
=91/80-2lg2