(3 marks) 6. If the three sides of parallelepiped are denoted by the vectors a = (a,,a,a, ), b=(b,,b,b, ) and c = (C,, C,,C, ) . find the volume of parallelepiped. (3 marks)0 0 0 2. Find rank of matrix A = 0 2 2 by transforming the matrix into Row Echelon Form. 3 0 3 (4 marks)