The-angle-of-elevation-of-point-A-and-B-from-P-are-and-respectively-The-bearing-of-A-and-B-from-P-are-S20-W-and-S40-E-and-their-distance-from-P-measured-on-the-map-are-3cm-and-1cm-respetively-

Question Number 5405 by sanusihammed last updated on 14/May/16

T h e a n g l e o f e l e v a t i o n o f p o i n t A a n d B f r o m P a r e α a n d β

r e s p e c t i v e l y . T h e b e a r i n g o f A a n d B f r o m P a r e S 20 ° W a n d

S 40 ° E a n d t h e i r d i s t a n c e f r o m P m e a s u r e d o n t h e m a p a r e

3 c m a n d 1 c m r e s p e t i v e l y . A i s h i g h e r t h a n B . P r o v e t h a t t h e

e l e v a t i o n o f A f r o m B i s

\frac{{t a n}^{- 1} [3 t a n α - t a n β]}{\sqrt{7}}

P l e a s e h e l p m e . i h a v e t w o q u e s t i o n s b u t i h a v e s o l v e d o n e .

P l e a s e h e l p m e t o s o l v e t h i s . T h a n k s f o r y o u r h e l p .

Commented by Yozzii last updated on 14/May/16

T h e p r o o f r e q u i r e d s u g g e s t s t h a t, f o r θ

b e i n g t h e a n s w e r o f a n g l e o f e l e v a t i o n,

t a n (θ \sqrt{7}) = 3 t a n α - t a n β .

I s i t p o s s i b l e f o r y o u t o c h e c k t h e q u e s t i o n

a g a i n t o m a k e s u r e t h a t i s w h a t i s

r e q u i r e d ?

I s i t θ = {t a n}^{- 1} (\frac{3 t a n α - t a n β}{\sqrt{7}}) i n s t e a d ?

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