An-MTN-mask-is-erected-at-a-point-P-in-ilaro-town-At-a-point-B-due-west-The-angle-of-elevation-of-its-top-is-and-at-point-C-due-south-the-angle-of-elevation-is-With-the-aid-of-an-appropriat

Question Number 6723 by Tawakalitu. last updated on 16/Jul/16

A n M T N m a s k i s e r e c t e d a t a p o i n t P i n i l a r o t o w n . A t a p o i n t

B d u e w e s t, T h e a n g l e o f e l e v a t i o n o f i t s t o p i s β a n d a t p o i n t

C d u e s o u t h, t h e a n g l e o f e l e v a t i o n i s α . W i t h t h e a i d o f a n

a p p r o p r i a t e d i a g a m . s h o w t h a t t h e a n g l e o f e l e v a t i o n o f t h e t o p

f r o m a p o i n t d u e s o u t h o f B a n d d u e w e s t o f C i s

{c o t}^{- 1} {[{c o t}^{2} (β) + {c o t}^{2} (α)]}^{\frac{1}{2}}

Commented by Tawakalitu. last updated on 16/Jul/16

p l e a s e h e l p