Question
True or false: Every planar quadratic form $q(x, y)=a x^2+2 b x y+c y^2$ can be written as a sum of squares.
Step 1
A general planar quadratic form is given by \( q(x, y) = ax^2 + 2bxy + cy^2 \), where \( a \), \( b \), and \( c \) are real coefficients. Show more…
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