If x = b + c 2a, y = c + a 2b, z = a + b 2c, then the value of x2 + y2 z2 + 2xy is

If x = b + c 2a, y = c + a 2b, z = a + b 2c, then the value of x

1.	If x = b + c 2a, y = c + a 2b, z = a + b 2c, then the value of x² + y² z² + 2xy is
A.	0
B.	a + b + c
C.	a b + c
D.	a + b c
Answer» B. a + b + c

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If x = b + c 2a, y = c + a 2b, z = a + b 2c, then the value of x2 + y2 z2 + 2xy is

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If x = b + c 2a, y = c + a 2b, z = a + b 2c, then the value of x² + y² z² + 2xy is