f(x, y) = x2-2xy+6y, Find (δ2f/δx2)+(δ2f/δy2)
Answers
Answer:
z=0
Step-by-step explanation:
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Answer with explanation:-
It isn't always that such questions reduce to a sum of squares plus a constant - but it is always useful to see if there are squares involved in some minimisation problem, because squares of real numbers are non-negative. – Mark Bennet Feb 27 '13 at 21:13
It isn't always that such questions reduce to a sum of squares plus a constant - but it is always useful to see if there are squares involved in some minimisation problem, because squares of real numbers are non-negative. – Mark Bennet Feb 27 '13 at 21:13what should i do after finding that "constant "? – user64267 Feb 27 '13 at 21:42
It isn't always that such questions reduce to a sum of squares plus a constant - but it is always useful to see if there are squares involved in some minimisation problem, because squares of real numbers are non-negative. – Mark Bennet Feb 27 '13 at 21:13what should i do after finding that "constant "? – user64267 Feb 27 '13 at 21:42Notice where the bottom is of a square, e.g. graph y=x2y=x2, and that should give you a good hint of where to find the bottom. – JB King Feb 27 '13 at 22:09
It isn't always that such questions reduce to a sum of squares plus a constant - but it is always useful to see if there are squares involved in some minimisation problem, because squares of real numbers are non-negative. – Mark Bennet Feb 27 '13 at 21:13what should i do after finding that "constant "? – user64267 Feb 27 '13 at 21:42Notice where the bottom is of a square, e.g. graph y=x2y=x2, and that should give you a good hint of where to find the bottom. – JB King Feb 27 '13 at 22:09Use that h2≥0h2≥0 for all real hh. Thus a minimum of such is when h=0h=0. –