KCSE MATHEMATICS QUESTION AND ANSWER ON MATRICES FORM 3 LEVEL

KCSE MATHEMATICS QUESTION AND ANSWER ON MATRICES FORM 3 LEVEL: (a) Find the determinant of the matrix (3 1-1 1). (1 mark) (b) A rectangle whose area is 15 cm² is transformed by the matrix (3 1-1 1) Determine the area of its image under the matrix of the transformation. (2 marks)