As observed from the top of a lighthouse,100 m high above sea level the angle of depression of a ship, sailing directly towards it changes from 30*to 45*. Determine the distance travelled by the ship daring the period of observation
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abhaysinghabhaysingh:
heights of tower is 100
this answer are incorrect
i saw the book back answer it is correct
how did u get 100
answer are correct but my question are change the height of lighthouse are not 75 m height of lighthouse are 100m
oh sorry for my mistake. i didn't notice it. sorry for my mistake
if u want answer i can send u again
ok
this answer are correct
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