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A ladder rests against a vertical wall at an inclination `alpha` to the horizontal, its foot is pulled away from the wall through a distance p so that its upper end slides a distance q down the wall and then the ladder makes an `angle beta` to the horizontal. show that `p/q` = `(cos beta - cos alpha)/(sin alpha - sin beta)`

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A ladder rests against a vertical wall at inclination alpha to the horizontal.Its foot is pulled away from the wall through a distance p so that it's upper end slides q down the wall and then ladder make an angle beta to the horizontal show that (p)/(q)=(cos beta-cos alpha)/(sin alpha-sin beta)

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ladder rests against a wall at an angle alpha to the horizontal its foot 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.Show that (a)/(b)=(cos alpha-cos beta)/(sin beta-sin alpha)

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