Choose the normal vector of the tangent plane to the surface defined by z =e4x²+16xy-9y2 at the point (-4, – 2,e92). O <- 64e156, – 28e156, 0> O None of the others ০ (-64e'56, -28e'56, - 1) O < 64e156, 28e156, 0> O <- 64e156, – 28e156, 1>

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