Let ∆ = \(\left|\begin{array}{ccc} \rm Ax & \rm x^2 & 1 \\ \rm By & \rm y^2 & 1 \\ \rm Cz & \rm z^2 & 1\end{array}\right|\) and ∆1 = \(\left|\begin{array}{ccc} \rm A & \rm B & \rm C \\ \rm x & \rm y & \rm z \\ \rm zy & \rm zx & \rm xy\end{array}\right|\), then

1
1 = – ∆
2
∆ ≠ ∆1
3
∆ – ∆1 = 0
4
None of these

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