when p ( y ) = 3 then the value of the polynomial ay3 - y2 + 2y - 5 is 1 then find the value of 'a'.
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The mechanical advantage of a 3rd class lever is always less than 1. For this class of levers, the input effort is higher than the output load, which is different from second-class levers and some first-class levers. However, the distance moved by the load is greater than the distance moved by the effort.
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