Sarrus rule for 3x3 determinant for JEE

Formula

\[\begin{vmatrix}a&b&c\\d&e&f\\g&h&i\end{vmatrix}=aei+bfg+cdh-ceg-bdi-afh\]

Variables: \(a,b,c,d,e,f,g,h,i\): entries of the matrix.

Conditions: Applicable only for \(3\times 3\) determinants.

Quick evaluation of determinants of order 3.