Question: (a) Is it possible for a quadratic form to be positive, q(x+) > 0, at only one point x + Rn? (b) Under what

(a) Is it possible for a quadratic form to be positive, q(x+) > 0, at only one point x + ∈ Rn?
(b) Under what conditions is q(x0) = 0 at only one point?

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a No by continuity Or equivalently q cx c 2 qx 0 ... View full answer

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