计算(x/4)^2 + ((20-x)/x)^2 =12
问题描述:
计算(x/4)^2 + ((20-x)/x)^2 =12
答
4.696 或13.7358
答
(x/4)^2 + ((20-x)/x)^2 =12
(x^2/16)+(x^2-40x+400)/x^2=12
我做不下去了阿.抱歉