91- 6303239042
Determinant with a Row Equal to a Sum
## Formula
If:
$$R_i=R_j+R_k$$
then the determinant can be split as:
$$D=D_1+D_2$$
where the row $$R_i$$ is replaced separately by $$R_j$$ and $$R_k$$.
## Usage
- Used to simplify determinants containing sums of rows or columns.
