Order of [x,y,z],,left[ {begin{array}{*{20}{c}}a&h&gh&b&fg&f&cend{array}} ri

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3 and 4 .Determinants and Matrices

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The order of $[x\,y\,z]\,\,\left[ {\begin{array}{*{20}{c}}a&h&g\\h&b&f\\g&f&c\end{array}} \right]\,\left[ \begin{array}{l}x\\y\\z\end{array} \right]$ is

A

$3 \times 1$

B

$1 \times 1$

C

$1 \times 3$

D

$3 \times 3$

Solution

(b) Order will be $(1 \times 3)(3 \times 3)(3 \times 1) = (1 \times 1)$.

Standard 12

Mathematics

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