(i) 
(ii) [2 3 – 7]
(iii) ![\left[ \begin{matrix} 3 \\ 0 \\ -1 \end{matrix} \right]](https://s0.wp.com/latex.php?latex=%5Cleft%5B+%5Cbegin%7Bmatrix%7D+3+%5C%5C+0+%5C%5C+-1+%5Cend%7Bmatrix%7D+%5Cright%5D+&bg=ffffff&fg=000&s=2&c=20201002)
(iv) ![\left[ \begin{matrix} \begin{matrix} 2 \\ 0 \\ 1 \end{matrix} & \begin{matrix} -4 \\ 0 \\ 7 \end{matrix} \end{matrix} \right]](https://s0.wp.com/latex.php?latex=%5Cleft%5B+%5Cbegin%7Bmatrix%7D+%5Cbegin%7Bmatrix%7D+2+%5C%5C+0+%5C%5C+1+%5Cend%7Bmatrix%7D+%26+%5Cbegin%7Bmatrix%7D+-4+%5C%5C+0+%5C%5C+7+%5Cend%7Bmatrix%7D+%5Cend%7Bmatrix%7D+%5Cright%5D+&bg=ffffff&fg=000&s=2&c=20201002)
(v) ![\left[ \begin{matrix} \begin{matrix} 2 & 7 & 8 \end{matrix} \\ \begin{matrix} -1 & \sqrt { 2 } & 0 \end{matrix} \end{matrix} \right]](https://s0.wp.com/latex.php?latex=%5Cleft%5B+%5Cbegin%7Bmatrix%7D+%5Cbegin%7Bmatrix%7D+2+%26+7+%26+8+%5Cend%7Bmatrix%7D+%5C%5C+%5Cbegin%7Bmatrix%7D+-1+%26+%5Csqrt+%7B+2+%7D+%26+0+%5Cend%7Bmatrix%7D+%5Cend%7Bmatrix%7D+%5Cright%5D+&bg=ffffff&fg=000&s=2&c=20201002)
(vi) ![\left[ \begin{matrix} \begin{matrix} 0 & 0 & 0 \end{matrix} \\ \begin{matrix} 0 & 0 & 0 \end{matrix} \end{matrix} \right]](https://s0.wp.com/latex.php?latex=%5Cleft%5B+%5Cbegin%7Bmatrix%7D+%5Cbegin%7Bmatrix%7D+0+%26+0+%26+0+%5Cend%7Bmatrix%7D+%5C%5C+%5Cbegin%7Bmatrix%7D+0+%26+0+%26+0+%5Cend%7Bmatrix%7D+%5Cend%7Bmatrix%7D+%5Cright%5D+&bg=ffffff&fg=000&s=2&c=20201002)
Solution:
(i) If a matrix has 4 elements, what are the possible order it can have?
(ii) If a matrix has 8 elements, what are the possible order it can have?
Solution:
More Solutions:
- If a : b : : c : d, prove that.
- If (5x+7y)/(5u+7v) = (5x-7y)/(5u-7v), show that (x/y) = (u/v).
- If (pa + qb) : (pc + qd) :: (pa – qb) : (pc – qd) prove that a : b : : c : d
- If (11a² + 13b²) (11c² – 13d²) = (11a² – 13b²)(11c² + 13d²), prove that a : b :: c : d.
- If x = (2ab/a+b), find the value of (x+a/x-a) = (x+b/x-b).