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A man is attempting to climb a rope that is not securely fastened. If he pull himself up x feet at once, then the rope slips x^3 feet down . If the number of feet at a time must he pull himself up to climb with as few pulls as possible, then the value of x is???
The solution is only that we have to find miNima of the graph x-x^3 and it comes out to be at 1/√3>. So this is the only answer
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