SOLVED: A) The rank of an (mxn) matrix A is 2. Which of the following must be true?A must be a 2x2 matrix. The minimum of m and n must be 2. The minimum of m and n must be greater or equal to 2. The maximum of m and n must be less than 2.B) The nullity of Mmx1o is 7. Which of the following must be true about m?m = 3. m = 27. m < 7.C) If S = Spanv1, v2, vn, then only one of the following statements could be false.v1 belongs to S. S belongs to S. Dimension of S < n. The set v1, v2, vn is independe

Finding the Rank of a 2 × 2 Matrix Using Determinants