IIT JEE TRIGONOMETRIC FUNCTIONS A ladder rest against a wall making an angle `alpha` with the hor...

1,191 views · Published 22 September 2017 · 4:53 · Indexed 20 October 2026

Channel: Doubtnut · 2017 · Education

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This is the Solution of question from Cengage Publication Math Book Trigonometry Chapter 6 TRIGONOMETRIC FUNCTIONS written By G. Tewani. You can Find Solution of all math questions from CENGAGE BOOK on our app DOUBTNUT for free. Download Doubtnut from - https://doubtnut.app.link/vnnHd7oHxR

A ladder rest against a wall making an angle `alpha`
with the horizontal. The foot of the ladder is pulled away from the wall
 through a distance `x ,`
so that it slides a distance `y`
down the wall making an angle `beta`
with the horizontal. Prove that `x=ytan(alpha+beta)/2dot`

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