(480-0.4T)^2+(0.3T)^2=360^2怎么解?
问题描述:
(480-0.4T)^2+(0.3T)^2=360^2怎么解?
答
230400 +0.16T^2-384+0.09T^2=129600
0.25T^2=-100416
无解