ULULUNUNL : Determinant of a skew-symbu Tawawi Statement - 2: For any matrix A, det (A) = det(A) and det (-A) = - det(A). Where det (B) denotes the determinant of matrix B. Then : [AIEEE 2011, II, (4, -1), 120] (1) Both statements are true (2) Both statements are false (3) Statement-1 is false and statement-2 is true. (4) Statement-1 is true and statement-2 is false 13 o and Au, = ( 100) Let A = 2 1 0.If u, and u, are column matrices such that Au, = (3 2 1 equal to : 1 , then u, + u, is [AIEEE-2012, (4, -1)/120) (1) 10) (4) Let P and Q be 3 x 3 matrices P + Q. If P3 = Q* and PQ = Q2P, then determinant of (P2 + Q2) is equal to : (1)-2 (2) 1 (3) 0 [AIEEE-2012, (4, -1)/120] (4) - 1 15.a The number of values of k, for which the system of equations : TAIFFF 2042 (A