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Previous Year Question Paper

BT-401 (GS) – Mathematics-III

December 2024CSITSEMESTER-4
December 2024
Max Marks: 70
Duration: 3 Hours
Instructions:

Attempt any five questions.

All questions carry equal marks.

Q.1
a)Unit 1

Using Newton-Raphson method find the real root of 3x = cos x + 1 correct to five decimal places.

b)Unit 1

Find f(g) from the given table.

Q.2
a)Unit 2

Apply Simpson's 3/8 rule to evaluate ∫₁·₀¹·³ √x dx for six digits.

b)Unit 2

Solve the system using Gauss-Seidel method: 27x+6y-z=85, 6x+15y+2z=72, x+y+54z=110.

Q.3
a)Unit 3

Using Runge-Kutta 4th order solve dy/dx=(y²-x²)/(y²+x²), y(0)=1 at x=0.4, step 0.2.

b)Unit 3

Find y(2.2) using Euler's method for dy/dx = -xy² where y(2)=1.

Q.4
a)Unit 4

Find the Inverse Laplace transform of 1/[p³(p²+a²)].

b)Unit 4

Using Laplace transform solve y'''+2y''-y'-2y=0 with y(0)=1, y'(0)=2, y''(0)=2.

Q.5
a)Unit 5

Fit a Poisson distribution to the given data.

b)Unit 5

Calculate the mean and standard deviation of Binomial Distribution.

Q.6
a)Unit 2

Find dy/dx at x=1.5 from the given table.

b)Unit 4

Evaluate ∫₀^∞ e^(-t)·sin t / t dt.

Q.7
a)Unit 1

Show that Newton Raphson method is quadratic convergent.

b)Unit 1

Derive Newton forward interpolation formula and estimate f(1.25) from the given table.

Q.8
a)Unit 2

Solve the system using Gauss elimination: 3x+y-z=3, 2x-8y+z=-5, x-2y+9z=8.

b)Unit 4

Find Fourier sine transform of 1/x.