A ladder sets against a wall at an angle "alpha" to the horizontal. If the foot is pulled away from the wall through a distance of 'a' , so that it slides a distance 'b' down the wall making an angle "Beta" with the horizontal. Show that [cos(alpha) - cos(beta)]/[sin(beta) - sin(alpha)] = a/b

Asked by Siva Raman K | 14th Dec, 2013, 04:17: PM

Expert Answer:

Answered by  | 14th Dec, 2013, 05:31: PM

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