If x = 997, y = 998, z = 999, then the value of x2 + y 2 + z 2 xy yz zx will be

If x = 997, y = 998, z = 999, then the value of x2 + y 2 + z 2 xy

1.	If x = 997, y = 998, z = 999, then the value of x² + y ² + z ² xy yz zx will be
A.	3
B.	9
C.	16
D.	4
Answer» B. 9

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If x = 997, y = 998, z = 999, then the value of x² + y ² + z ² xy yz zx will be

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