Rank of matrix : 1) Rank is equal to the number of linearly independent rows or columns in the matrix 2)Rank is equal to the number of non zero rows in ECHLON FORM of matrix ARE BOTH the things same pls explain ?

S->Aa | Bc A->a B->a 1. Is the above grammer left factored ?? If not ,then do left factoring on it ?? 2. Is above grammer deterministic ?? 3. Is every left factored grammer deterministic ??