Grade Select GradeAlgebra
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
- non negative
- zero
- non positive
