A person starts walking from home and walks: 5 miles East 5 miles Southeast 6 miles South 2 miles Southwest 2 miles East This person has walked a total of 20 miles Find the total displacement vector for this walk: If this person walked straight home, they'd have to walk miles

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A: B(x) = xa (1-x)b  B'(x) = xa ddx[(1-x)b] + (1-x)b ddx(xa)B'(x) = -xa b(1-x)b-1 + (1-x)b axa-1B'(x) =...

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