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Find the 2nd-order partial derivatives of f(x,y)=2xy^2-3x^2+xy^3
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Let B be the mx1 col. matrix [1/m ... 1/m]'. If A =[a1 ... am] is any row matrix. What is AB?
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A cubical die, numbered 1 to 6 is weighted so that a six is twice as likely to occur as any other #.
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