) Consider the matrix A = [a b] with a, b, c and d real-valued numbers. Under which condition(s) for a, b, c and d is the matrix A indefinite?

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Q: 92 86 72 62 52 42 32 J F M A M J JASOND 4.3 4.0 3.7 3.4 3.1 2.8 2.5

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Q: Find the inverse and rank of A.

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Q: Use Divergence Theorem to evaluate the flux integral ∫∫F·ndS, where F = 〈x^2, y^2, z^2〉, S is the…

A: Divergence theorem:∫∫sF.⇀  N^dS =∬∫DdivF⇀dV , here D is the solid bounded by the closed surface S.

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