A vertical tower sands on a horizontal plane and is surmounted by a vertical flag staff of height `hdot` At a point on the plane, the angles of elevation of the bottom and the top of the flagstaff are `alpha` and `beta` .Prove that the height of the tower `(htanalpha)/(tanbeta-tanalpha)`

A vertical tower Stands on a horizontal plane and is surmounted by a vertical flag staff of height h. At a point on the plane, the angles of Elevation of the bottom and the top of the flag staff are alpha and beta respectively Prove that the height of the tower is (htanalpha)/(tanbeta - tanalpha)

A vertical tower stands on a horizontal plane and is surmounted by a vertical flag staff of height h. At a point on the plane, the angles of Elevation of the bottom and the top of the flag staff are alpha and beta respectively. Prove that the height of the tower is (htanalpha)/(tanbeta - tanalpha)

A vertical tower sands on a horizontal plane and is surmounted by a vertical flag staff of height hdot At a point on the plane, the angles of elevation of the bottom and the top of the flag are beta and alpha . then height of tower equal to

A vertical tower stand on a horizontal plane and is surmounted by a vertical flag-staff of height 5 metres. At a point on the plane, the angles of elevation of the bottom and the top of the flag-staff are respectively 30^0 and 60^0 . Find the height of the tower.

A vertical tower stands on a horizontal plane and is surmounted by a flag-staff of height 7m. From a point on the plane, the angle of elevation of the bottom of the flag-staff is 30o and that of the top of the flag-staff is 45o . Find the height of the tower.

From te top of a tower , 60 meters high, the angles of depression of the top and bottom of a pole are alpha and beta respectively .Find the height of the pole.

A 7 m long flagstaff is fixed on the top of a tower on the horizontal plane. From a point on the ground, the angles of elevation of the top and bottom of the flagstaff are 45^(@)" and " 30^(@) respectively. Find the height of the tower.

At a point on a level plane subtends an angle theta and flag staff of height a at the top of the tower subtends an angle phi . Find the height of the tower.

A tower subtends an angle alpha at a point A in the plane of its base and the angle of depression of the foot of the tower at a point b metres just above A is beta . Prove that the height of the tower is btanalphacotbeta .

The angle of elevation of the top of a tower as observed from a point on the ground is 'a' and on moving 'a' metre towards the tower, the angle of elevation is 'beta' Prove that the height of the tower is : (a tan alphatanbeta)/(tanbeta-tanalpha)