Question

मैं बेईमान नहीं सी ट्रांसलेट पंजाबी टो इंग्लिश​

Answer 1

Answer:

More precisely, the matrix

(12−2111)

is the matrix associated to T with respect to the standard bases of R3 and R2. Without doing reduction, the rank of T is given by the rank of one of the biggest submatrices with non-vanishing determinant. In your case there is a submatrix of rank 2 with determinant non-zero (as gimusi is showing), so the rank of T is 2.