सारणिक गणित - सारणिक

• A
  6
• ✓
  $\pm 6$
• C
  $-6$
• D
  $0$

Answer: B.

• A
  2
• ✓
  3
• C
  $-3$
• D
  $-2$

Answer: B.

• A
  $\left[\begin{array}{cc}-1 & -1 \\ 4 & 3\end{array}\right]$
• B
  $\left[\begin{array}{cc}3 & 1 \\ -4 & -1\end{array}\right]$
• C
  $\left[\begin{array}{ll}0 & 0 \\ 0 & 0\end{array}\right]$
• ✓
  $\left[\begin{array}{ll}1 & 0 \\ 0 & 1\end{array}\right]$

Answer: D.

• A
  $100 I$
• B
  $10 I$
• C
  $10$
• ✓
  $1000$

Answer: D.

• ✓
  $7\left[\begin{array}{cc}2 & -1 \\ 3 & 2\end{array}\right]$
• B
  $\left[\begin{array}{cc}2 & -1 \\ 3 & 2\end{array}\right]$
• C
  $\frac{1}{7}\left[\begin{array}{cc}2 & -1 \\ 3 & 2\end{array}\right]$
• D
  $\frac{1}{49}\left[\begin{array}{cc}2 & -1 \\ 3 & 2\end{array}\right]$

Answer: A.