, 20.08.2019 01:00, bhavya1650

# An observer from the top of a lighthouse 100m high above sea level the angle of depression of ship sailing directly towards it changes from 30 to 60 find the distance travelled by the ship during the period of observation

### Other questions on the subject: Math

Math, 18.08.2019 04:00, sabina3193
If b be the exterior angle of a regular polygon of n - sides and a is any constant thencosa * cos(a + b) + cos(a + 2b) + n terms is equal to(1) 02) cosa3)14)$$\sqrt{3} \div 2$$​
Math, 18.08.2019 09:00, Vanshikachilkoti10
Find the rational number between -7 and 1 upon 3​