Brandonjj6402 Brandonjj6402

13-03-2024
Mathematics

contestada

If
A=[[8,-1,4],[-1,4,-2],[4,-2,-6]]
and
Q(vec(x))=vec(x)(T)Avec(x),
then
Q(x₁,x₂,x₃)=?

a) 8x₁² - 2x₁x₂ - 4x₁x₃ - 2x₂² + 4x₂x₃ - 6x₃²
b) 8x₁² - x₁x₂ + 4x₁x₃ - x₂² + 4x₂x₃ - 6x₃²
c) 8x₁² - x₁x₂ + 2x₁x₃ - x₂² + 4x₂x₃ - 6x₃²
d) None of the above

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