Question

The angle of elevation of an aeroplane from a point on the ground is 60° . After a flight of 10 sec the angle of elevation becomes 30°. If the aeroplane is flying at a constant height of √3 km, find the speed of the aeroplane.

Answer 1

$60 \gamma 25555566 \binom{22}{ = 11?} \sqr2222t[5442]{?}$

Answer 2

Answer:

उत्तर

60y2-23y-y+y=60y+23y-2