Let F (x, y, z) = f (x, y, z) i+g (x, y, z) j+ h (x, y, z) k and suppose that f, g, and h are continuous and have continuous first partial derivatives in a region. If F is conservative in the region, then of ду dg of dx dh dg dh dz dx dz ду With the aid of these formulas, determine whether F is conservative. (a) F (x, y, z) = 7 sin 7x i+zj+y k Fis (b) F (x, y, z) = 8z° i+ 16y'zj+7y° k Fis

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