As observed from the top of a light house,100m above the sea level,the angle of depression of a ship sailing directly towards it,changes from 30 degree to 45 degree.Determine the distance travelled by the ship during this period.
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nazilmohammad:
Thnx...
welcome
One tiny mistake still I get the answer how to do it...thnx
ok
What is root 3 my friend
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