1.

Mark the correct alternative in the following question:​What should be added to xy + yz + zx to get -xy - yz - zx?(a) -2xy - 2yz - 2zx (b) -3xy - yz - zx (c) -3xy - 3yz - 3zx ​ (d) 2xy + 2yz + 2zx

Answer» Mark the correct alternative in the following question:



​What should be added to xy + yz + zx to get -xy - yz - zx?



(a) -2xy - 2yz - 2zx (b) -3xy - yz - zx (c) -3xy - 3yz - 3zx ​ (d) 2xy + 2yz + 2zx


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