Question

If $\Delta=\begin{vmatrix} 1 & a & a^2 \\\ 1 & b & b^2 \\\ 1 & c & c^2 \end{vmatrix}$ and $\Delta_1=\begin{vmatrix} 1 & 1 & 1 \\\ bc & ca & ab \\\ a & b & c \end{vmatrix}$ then

• A. Δ1 ≠ Δ
• B. Δ1 = Δ
• C. Δ1 = -Δ
• D. Δ1 = 3Δ

Answer 1

Answer: (C)

Δ1 = -Δ

Answer 2

The correct answer is (C) : Δ1 = -Δ.