If x/(y + z – x) = y/(z + x – y) = z/(x + y – z) = r, then r can – McqOptions

MCQOPTIONS

1.	If x/(y + z – x) = y/(z + x – y) = z/(x + y – z) = r, then r cannot take any value except___
A.	- 1/2
B.	1
C.	1 or - 1/2
D.	-1 or 1/2
Answer» D. -1 or 1/2

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