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05-06-2023
Mathematics

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. Given the matrix R = (3¹) i. show that R is non-singular. find R¹, the inverse of R. ii. (1 mark) (2 marks) (2 marks) iii. show that RR¹¹ = L B. Use the matrix method or otherwise to solve the following system of simultaneous equations: i. x + 2y + 3z=-5 ii. 3x + y - 3z = 4 iii. - 3x + 4y + 7z=-7 (15 marks) (Total 20 marks)

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