Concept: Using Scalar Multiple Property: If all the elements of a row (or column) of a determinant are multiplied by a non-zero constant, then the determinant gets multiplied by the same constant. Calculation: ∆=|
a1
b1
c1
a2
b2
c2
a3
b3
c3
| Column 1 of all elements is multiplied by p then given matrices is also multiplied by p Again column 3 of all elements is multiplied by q then given matrices is also multiplied by q pq∆=|