Question

Frem a window for high above the around in
Istreet the care of elevation and depression at
the top and foot of ens the howe on the opp
را
بر گزار
بار
کمرے سے
سے
ر
ی
پریک
کل
را زیر سوال کاربر
بر
را از سر
سر زردا
72. -​

Answer 1

Answer:

From a window, h metres high above the ground, of a house in a street, the angles of elevation and depression of the top and the foot of another house on the opposite side of the street are α and β respectively. Show that the height of the opposite house is h(1+tanα.cotβ) metres