Hey, I need help with a trig question please:
From a point P an observer finds that the angle of elevation of the top of a vertical tower is α°. After walking x metres horizontally towards the foot of the tower, the observer finds that the angle of elevation is β°. If the height of the tower is h metres, show that:
x=h(cot α° - cot β°)
From a point P an observer finds that the angle of elevation of the top of a vertical tower is α°. After walking x metres horizontally towards the foot of the tower, the observer finds that the angle of elevation is β°. If the height of the tower is h metres, show that:
x=h(cot α° - cot β°)
