The UP Board Class 12 Mathematics Exam 2026 was successfully conducted today, February 23, 2026, during the evening shift from 2:00 PM to 5:15 PM. Mathematics is one of the most critical subjects for ...
I know to find if a set of vectors are linearly indepenent I have to put them in a matrix and get the rref. if the rref == the identity matrix, then the vectors are linearl independent. but why? can ...