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Abhishek

· started a discussion

· 1 Months ago

... (Question: 309156.0 )

How QC = x+2h?

Question:

If the angles of elevation of a cloud from a point h metres above a lake is \(\alpha\) and the angle of depression of its reflection in the lake is \(\beta\) , distance of the cloud from point of observation is –

Options:
A)

2h sec⁡ atan  b+tan⁡ a    

B)

 

C)

  

D)

  

Solution:

Ans: (d)

  

Piyush Bamnawat

· commented

· 1 Months ago

reflection hai so x+h+h jitna wo uper hai lake ke
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