解此方程2.25%(1-x)^2=1.98%
问题描述:
解此方程2.25%(1-x)^2=1.98%
答
(1-x)^2=1.98/2.25
(1-x)^2=0.88
1-x=0.938
x=0.062应该是1-x≈0.938吧是的,是约等于。