If (ab + bc + ca) = 0 then (1/a2-bc) + (1/b2-ca) + (1/c2-ab) = ? – McqOptions

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1.	If (ab + bc + ca) = 0 then (1/a2-bc) + (1/b2-ca) + (1/c2-ab) = ?
A.	0
B.	1
C.	2
D.	4
Answer» B. 1

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