Question

If $\Delta=\begin{vmatrix} 1&2&3\\\2&5&7\\\3&9&13 \end{vmatrix}$ and $\Delta'=\begin{vmatrix} 7&20&29\\\2&5&7\\\3&9&13 \end{vmatrix}$ then

• A. Δ'=3Δ
• B. $\Delta'=\frac{3}{\Delta}$
• C. Δ'=Δ
• D. Δ'=2Δ

Answer 1

Answer: (C)

Δ'=Δ

Answer 2

The correct option is (C): Δ'=Δ