Question

an aeroplane when flying at the height of 4000 m from the ground passes vertically above another aeroplane at an instant when the angles of the elevation of the two planes from the same point on the ground are 60 degree and 45 degree respectively find the vertical distance between the an aeroplane when flying at a height of 4000 m from the ground passes vertically above another aeroplane at an instant when the angle of the elevation of two plane from the same point on the ground are 60 degree and 45 degree respectively find the vertical distance between the aeroplane at that instant
Or
the angle of elevation of the top of a vertical Tower from a point P on the ground is 60 degree at the at a point Q 40 vertically above P the angle of elevation is 45 degree find the height of the tower a b and the distance p a

Answer 1

Answer:

An aeroplane, when flying at a height of 4000 m from the ground passes vertically above another aeroplane at an instant when the angles of elevation of the two planes from the same point on the ground are 60o and 45o respectively. Find the vertical distance between the aeroplanes at that instant.