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Monday, January 14, 2019

Dibrugarh University Arts Question Papers:MATHEMATICS (Major) (Matrices, Ordinary Differential Equations, Numerical Analysis) (May)'-2016

Course: 201
(Matrices, Ordinary Differential Equations, Numerical Analysis)
Full marks: 80
Pass Marks: 32/24
Time: 3 hours
The figures in the margin indicate full marks for the questions

1. (a) State whether True or False: 1
Rank of a matrix is a positive integer.
(b) Define elementary transformations of matrices. 2
(c) Show that rank of the product of two matrices cannot exceed that of either matrix. 5
2. (a) Show that the following equations are consistent and solve them by matrix method: 6
State and prove Cayley-Hamilton theorem. 6
(b) Find the characteristic values and characteristic vectors of the following matrix: 6
B: Ordinary Differential Equations
(Marks: 30)
3. (a) Find the integrating factor of the differential equation.
                      and are functions of. 1
(b) Solve (any two): 3x2=6
(c) Show that the solutions and of
                    are linearly independent. 3
4. (a) Solve: 2
(b) Solve (any two): 4x2=8
5. (a) Describe the method of removal of the first derivative of the differential equation
(b) Solve (any one): 5
                               by putting
C: Numerical Analysis
(Marks: 30)
6. (a) Write the condition of convergence of iteration method. 1
(b) In solving system of linear algebraic equation, what are the differences between ‘Gauss elimination method’ and ‘Jordan Method’? 2
(c) Find a real root of the equationby using bisection method correct to three decimal places. 6
Find a root of the equationby using Newton Raphson method correct to three decimal places. 6
(d) Solve the following equations by Gauss-Jordan Method: 6
7. (a) Define interpolation. 1
(b) Evaluate 2
(c) Answer (any two): 6x2=12
  1. Deduce ‘Newton’s forward interpolation formula’.
  2. Derive Simpson’s one-third rule for numerical integration.
  3. Evaluate:
                                              By Simpson’srule


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