Checkout JEE MAINS 2022 Question Paper Analysis : Checkout JEE MAINS 2022 Question Paper Analysis :

P is a point on the segment joining the feet of two vertical poles of heights a and b. The angles of elevation of the tops of the poles from P are 45° each. Then, the square of the distance between the tops of the poles is

1) (a2 + b2) / 2

2) (a2 + b2)

3) 2 (a2 + b2)

4) 4 (a2 + b2)

Solution: (3) 2 (a2 + b2)

Heights and distances JEE Questions Q10

OA = a, AB = b, DE = a + b, CE = b – a

l = (a + b)2 + (b – a)2

= a2 + b2 + 2ab + b2 + a2 – 2ab

= 2a2 + 2b2

= 2 (a2 + b2)

Was this answer helpful?

 
   

0 (0)

(0)
(0)

Choose An Option That Best Describes Your Problem

Thank you. Your Feedback will Help us Serve you better.

Leave a Comment

Your Mobile number and Email id will not be published.

*

*

Ask
Question