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Purnasha Rudra

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· 1 Months ago

Option A and B are same.

Question:

A ladder rests against a wall at angle 'α' to the horizontal. Its foot is pulled away from the wall through a distance 'a', so that it slides a distance 'b' down the wall making an angle β with the horizontal. Then  ab   =?

Options:
A)

  

B)

  

C)

  

D)

  

Solution:

Ans: (a)


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