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Not sure how to go about this. Example 1. (True/false) If (10, -3) is a critical point of a continuous function f, and fzz(10, -3)

Not sure how to go about this.

Example 1. (True/false) If (10, -3) is a critical point of a continuous function f, and fzz(10, -3) = 2 and fry(10, -3) = -2 and fvv(10, -3) = 4, then f has a saddle point at (10, -3)

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