question( a) under topic matrix and i need formula with Determinant A, minor A ,Cofactor and Adjoin A with clear formula ..

question b is under topic matrix and using cramer rules

09 QUESTION: 2 a) Convert the following equations into matrix: X-y = 3 2x + 3y = 1 Using inverse matrix method, solve the simultaneous equations and find the value of x and y. [8 marks) b) A company sells three types of products; A, B and C at three different outlets in Alor Setar, KL, and Kota Kinabalu. The price of each product is given as X, Y and Z respectively. During a sales promotion in the month of January 2020, the company recorded the following sales data: The number of products sold at its Alor Setar outlet was 80 units A, 150 units B and 380 units C. The number of products sold at its outlet in KL was 100 units A, 120 units B and 560 units C. The number of products sold at its outlet in Kota Kinabalu was 80 units A, 200 units B and 280 units C. If the revenue collected in Alor Setar, KL, and Kota Kinabalu in the month of January 2020 was RM100,000, RM120,000 and RM100,000 respectively find the price of each unit of A, B and C by using matrix and Cramer's Rule. (12 marks] [Total: 20 marks) QUESTION: 2 a) Convert the following equations into matrix: x-y=3 2x + 3y = 1 Using inverse matrix method, solve the simultaneous equations and find the value of x and y. (8 marks] b) A company sells three types of products; A, B and C at three different outlets in Alor Setar, KL, and Kota Kinabalu. The price of each product is given as X, Y and Z respectively. During a sales promotion in the month of January 2020, the company recorded the following sales data: The number of products sold at its Alor Setar outlet was 80 units A, 150 units B and 380 units C. The number of products sold at its outlet in KL was 100 units A, 120 units B and 560 units C. The number of products sold at its outlet in Kota Kinabalu was 80 units A, 200 units B and 280 units C. If the revenue collected in Alor Setar, KL, and Kota Kinabalu in the month of January 2020 was RM100,000, RM120,000 and RM100,000 respectively find the price of each unit of A, B and C by using matrix and Cramer's Rule. (12 marks] [Total: 20 marks) 09 QUESTION: 2 a) Convert the following equations into matrix: X-y = 3 2x + 3y = 1 Using inverse matrix method, solve the simultaneous equations and find the value of x and y. [8 marks) b) A company sells three types of products; A, B and C at three different outlets in Alor Setar, KL, and Kota Kinabalu. The price of each product is given as X, Y and Z respectively. During a sales promotion in the month of January 2020, the company recorded the following sales data: The number of products sold at its Alor Setar outlet was 80 units A, 150 units B and 380 units C. The number of products sold at its outlet in KL was 100 units A, 120 units B and 560 units C. The number of products sold at its outlet in Kota Kinabalu was 80 units A, 200 units B and 280 units C. If the revenue collected in Alor Setar, KL, and Kota Kinabalu in the month of January 2020 was RM100,000, RM120,000 and RM100,000 respectively find the price of each unit of A, B and C by using matrix and Cramer's Rule. (12 marks] [Total: 20 marks) QUESTION: 2 a) Convert the following equations into matrix: x-y=3 2x + 3y = 1 Using inverse matrix method, solve the simultaneous equations and find the value of x and y. (8 marks] b) A company sells three types of products; A, B and C at three different outlets in Alor Setar, KL, and Kota Kinabalu. The price of each product is given as X, Y and Z respectively. During a sales promotion in the month of January 2020, the company recorded the following sales data: The number of products sold at its Alor Setar outlet was 80 units A, 150 units B and 380 units C. The number of products sold at its outlet in KL was 100 units A, 120 units B and 560 units C. The number of products sold at its outlet in Kota Kinabalu was 80 units A, 200 units B and 280 units C. If the revenue collected in Alor Setar, KL, and Kota Kinabalu in the month of January 2020 was RM100,000, RM120,000 and RM100,000 respectively find the price of each unit of A, B and C by using matrix and Cramer's Rule. (12 marks] [Total: 20 marks)