If x = (a/b) + (b/a), y = (b/c) + (c/b) and z = (c/a) + (a/c), then wh – McqOptions

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1.	If x = (a/b) + (b/a), y = (b/c) + (c/b) and z = (c/a) + (a/c), then what is the value of xyz – x2 – y2 – z2?
A.	-4
B.	2
C.	-1
D.	-6
Answer» B. 2

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