Skip to content
Previous Year Question Paper

BT-401 (GS) – Mathematics-III

June 2025CSITSEMESTER-4
June 2025
Max Marks: 70
Duration: 3 Hours
Instructions:

Attempt any five questions.

All questions carry equal marks.

Q.1
a)Unit 1

Find the real root of f(x)=x³-x-10 by Newton Raphson method correct up to 4 decimal places.

b)Unit 1

Find solution y(301) using Newton Divided difference interpolation formula.

Q.2
a)Unit 2

Evaluate the integral using Simpson's 3/8 rule from the given table.

b)Unit 2

Solve the system by Gauss elimination: x+y+z=4, x+4y+3z=8, x+6y+2z=6.

Q.3
a)Unit 3

Using modified Euler's method, find y at x=0.3 given dy/dx=x+y, y=1 when x=0.

b)Unit 3

Find y(1.05) using 4th order Runge-Kutta for dy/dx=x²+y², y(1)=1.2.

Q.4
a)Unit 4

Find the inverse Laplace transform of F(s)=1/[(s+1)(s²+1)].

b)Unit 4

Find Laplace transform of y(t) satisfying y''-2y'-y=1, y(0)=-1, y'(0)=1.

Q.5
a)Unit 5

Find probability that car speed >100 km/hr for N(90,10²).

b)Unit 5

Find binomial distribution with mean 100 and SD 5.

Q.6
a)Unit 5

Find mean and SD of normal distribution where 10.03% items under 25 kg and 89.97% under 70 kg.

b)Unit 1

Find solution using Lagrange's Interpolation formula.

Q.7
a)Unit 4

Find L(t² e^(-t) cosh 2t) and L(e^(3t) sin² 4t).

b)Unit 3

Using Milne's method find y(4.4) given 5xy+y²-2=0 and four starting values.

Q.8
a)Unit 5

Find mean of Poisson distribution.

b)Unit 5

Write short note on Exponential distribution.