A rocket C rises vertically at 800m/s from a point A. a man standing at
B,which is 6000m from A, is watching the rocket.Let angle ABC=θ
Find the rate of change of θ w.r,t time when
a) AC=6000
b)AC=0
PLZ show the steps
收錄日期: 2021-04-25 17:21:22
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https://hk.answers.yahoo.com/question/index?qid=20080728000051KK02658