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If x and y are real and different. u = x2 + y2 + 9z2 – 6xyz -3zx – 2xy . Then u is always non negative zero non positive

If x and y are real and different.
u = x2 + y2 + 9z2 – 6xyz -3zx – 2xy
. Then u is always
  1. non negative
  2. zero
  3. non positive

Grade:Select Grade

1 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
4 years ago
Dear student

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