0.3^-1+(-1/3)^-2+4^0.5-3^-1+5.5^0=?

问题描述:

0.3^-1+(-1/3)^-2+4^0.5-3^-1+5.5^0=?

0.3^-1+(-1/3)^-2+4^0.5-3^-1+5.5^0=10/3+1/(-1/3)^2+2-1/3+1
=10/3+9+2-1/3+1
=15