TMA 2 Uni Math B Jan 2018.docx - Question 1 A=(a Given[13 −50[−24 −31 and B= Compute the following(i A B marks[2(ii 2A-3B marks[2(iii AB[2

# TMA 2 Uni Math B Jan 2018.docx - Question 1 A=(a Given[13...

• Homework Help
• 5

This preview shows page 1 - 3 out of 5 pages.

Question 1 (a) Given: A = [ 1 0 3 5 ] and  B = [ 2 1 4 3 ] Compute the following: (i) A+B [2 marks] (ii) 2A-3B [2 marks] (iii) AB [2 marks] (iv) AB+BA [2 marks] (b) If A = [ 3 2 1 1 ] and B ¿ [ 0 4 2 8 ] , find matrices X such that 2 A + X = B [5 marks] (c) For the matrix A = [ 3 2 1 6 ] , find (i) det (A) [3 marks] (ii) A 1 [3 marks] (iii) X if AX = [ 5 6 7 2 ] [Hint: multiply both side by A 1 ] [3 marks] (iv) Y if YA = [ 5 6 7 2 ] WUC115/05 University Mathematics B Sem1/2018

Subscribe to view the full document.

[Hint: multiply both side by A 1 ] [3 marks] Question 2 (a) Solve the following system of linear equations by using the method of substitution. x + 3 y =− 11 3 x + 2 y = 30 [4 marks] (b) Solve the following system of linear equations by using the method of elimination. 3 x + 2 y + 9 = 0 4 x = 3 y + 5 [5 marks] (c) Solve the following equations by using Gaussian elimination. (i) 4 2 2 5 2 2 2 x y z x y z x y z  [8 marks] (ii) 3 4 2 7 2 3 13 x y z x z x y z [8 marks] WUC115/05 University Mathematics B Sem1/2018
• Winter '16
• Winnie Wong
• Linear Algebra, University Mathematics B, Find T15

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern

Ask Expert Tutors You can ask 0 bonus questions You can ask 0 questions (0 expire soon) You can ask 0 questions (will expire )
Answers in as fast as 15 minutes