作业帮吧 关注:73,167贴子:1,167,684
  • 0回复贴,共1

【作业帮】请帮忙翻译一下下面这道题目,谢谢!

只看楼主收藏回复

The angle of elevation of the sun is decreasing at a rate of .25 rad/h.How fast is the shadow cast by a 400-ft-tall building increasing when the angle of elevation of the sun is Pi/6?


IP属地:新西兰1楼2016-10-16 11:01回复