Q13 only brief answers are required.

Let A, B E Mnxr(F) such that B is invertible. Which of the following statements are true? Select all true statements. O If AB is invertible then A is invertible O det (AB-1) det ( A) det (B) O If det(AB) = 0 then det(A) = 0. O None of the aboveLet T: IF\" > Fm be a linear transformation where 'n > m and let A : [T]g. Which of the following statements are true? Select all true statements. C] T is not one-to-one C] A2 is defined [3 rank(A) : n 0 None of the above