‹ Back to the paper
Which one of the following is equal to the above sum?
$2 \begin{vmatrix} x & y & z \\ p & q & r \\ a & b & c \end{vmatrix} + \begin{vmatrix} x & y & z \\ s & t & u \\ 2a & 2b & 2c \end{vmatrix}$
Which one of the following is equal to the above sum?
- (a)$\begin{vmatrix} 3x & 3y & 3z \\ 2p+s & 2q+t & 2r+u \\ 4a & 4b & 4c \end{vmatrix}$
- (b)$\begin{vmatrix} 2x & 2y & 2z \\ p+s & 2q+t & 2r+u \\ 2a & 2b & 2c \end{vmatrix}$
- (c)$\begin{vmatrix} x & y & z \\ p+s & q+t & r+u \\ 2a & 2b & 2c \end{vmatrix}$
- (d)$\begin{vmatrix} 2x & 2y & 2z \\ p+s & q+t & r+u \\ 4a & 4b & 4c \end{vmatrix}$
Answer
No answer yet.
From ISC 2025 Improvement Mathematics Paper 1, question 1(xi).