The angle of elevation of the top of a tower from a point` A` due south of the tower is `alpha` and from `B` due east of tower is `beta`. If `AB=d`, show that the height of the tower is `d/sqrt(cot^2 alpha+ cot^2 beta)`.

Problem on sine rule Type:-2 (i)The angle of elevation of the top of the tower from a point A due South of the tower is alpha and from B due east of the tower is beta . If AB=d Show that the height of the tower is d/(sqrt(cot^2alpha+cot^2beta)) (ii) A tree stands vertically on a hill side which makes an angle of 15^@ with the horizontal. From a point on the ground 35m down the hill from the base of the tree ; the angle of elevation of the top of the tree is 60^@ .find the height of the tree ?

The angle of elevation of the top of a tower a point A due south of it is 30^@ and from a point B due west of it is 45^@ .If the height of the tower is 100 meters ,then find the distance AB.

The angle of elevation of the top of a tower from a point 40 m away from its foot is 60^(@) . Find the height of the tower.

The elevation of a tower at a station A due north of it is alpha and at a station B due west of A is beta . Prove that the height of the tower is (ABsinalphasinbeta)/(sqrt(sin^2alpha -sin^2beta))

The angle of elevation of a tower PQ at a point A due north of it is 30^(@) and at another point B due east of A is 18^(@) . If AB =a. Then the height of the tower is

The angle of elevation of the top of a tower from a point on the ground, which is 40 m away from the foot of the tower is 30^(@) . Find the height of the tower.

The angle of elevation of the top of a tower from a point on the ground, which is 30m away from the foot of the tower, is 30^@ . Find the height of the tower.

The angle of elevation of the top of a tower from a point on the ground, which is 30m away from the foot of the tower is 30^@ . Find the height of the tower.

The angle of elevation of the top of a tower from a point on the ground, which is 30 m away from the foot of the tower is 30^@ . Find the height of the tower.

The angle of elevation of the top of a certain tower from a point A on the ground is alpha , at B is 2alpha , at C is 3alpha . If AB= 4/3 BC , then which of the following is true.