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April 21, 2014

Homework Help: math

Posted by lucky on Sunday, June 19, 2011 at 3:59am.

A ladder , 5 meter long , standing on a horizontal floor , leans against a vertical wall . If the top of the ladder slides downwards at the rate of 10 cm/sec . Find the rate at which the angle between the floor and the ladder is decreasing when the lower end of the ladder is 2 meter from the wall .

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