Page 119 - Math SL HB Sem 1
P. 119
CIRCULAR I.-UNCTIONS ANt) TRIGONOME'IRY
Example 4: From a point I observe that the anglc of elevation of the top
of a tree is 2l I walk I 0 n) torvards the foot f the tree to a
o
from where the angle of elevation of rhe top of the trce is
!g,_nt ^B:
34 " . Calculate the height of the tree above the level
of observation.
4-44
