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If \(c \ne 1,\) is \(ab = a+b?\)
(1) \(a^2+b^2=0\)
(2) \(a=ac=b\)
Answer: D
Source: EMPOWERgmat
(1) \(a^2+b^2=0\)
(2) \(a=ac=b\)
Answer: D
Source: EMPOWERgmat
