1.

A ladder rests against a wall making an angle alpha with the horizontal. The foot of the ladder is pulled away from the wall through a distance ‘a’ so that it slides a distance ‘b’ down the wall making an angle beta with the horizontal then the value of (a)/(b) is

Answer»

`TAN""(alpha+beta)/(2)`
`tan""(2)/(alpha+beta)`
`alpha+beta`
`alpha+beta`

ANSWER :A


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