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9. (16) Determine the truth value of each expression below. The domain is the set of all real n umberS a) Vx3y (xy 0) c)

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9. (16) Determine the truth value of each expression below. The domain is the set of all real n umberS a) Vx3y (xy 0) c) VxVy3z (z-(x-y/3) d) Vx3yVz (z=(x-y/3)

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