Step 1:

$\"\"$

The determinant is $\"\"$

Interchange the rows $\"\"$ and $\"\"$ in the above determinant.

$\"\"$

Interchange the rows $\"\"$ and $\"\"$ in the above determinant.

$\"\"$

Take out common factor $\"\"$ from $\"\"$ .

$\"\"$

Substitute the value $\"\"$ .

$\"\"$

$\"\"$ $\"\"$ .

Solution:

$\"\"$