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Previous Year Question Paper

BT-401 (GS) – Mathematics-III

June 2024CSESEMESTER-4
June 2024
Max Marks: 70
Duration: 3 Hours
Instructions:

Attempt any five questions.

All questions carry equal marks.

Q.1
a)Unit 1

If f(x)=x³-x²+4x-4=0, find next approximation from x=2 correct up to 2 decimal places.

b)Unit 1

What is the rate of convergence of Newton Raphson method?

Q.2
a)Unit 1

Find Δe^(ax), Δ²e^x, Δlog x.

b)Unit 1

Prove that f(4) = f(3) + Δf(2) + Δ²f(1) + Δ³f(1) taking 1 as the interval of differencing.

Q.3
a)Unit 2

Using Simpson's 3/8 rule to solve the integral ∫₄⁵·² log_e x dx.

b)Unit 1

Find f(0.18) from the given table using Newton's Forward interpolation formula.

Q.4
a)Unit 2

Apply Gauss Elimination method to solve: 2x-y+3z=9, x+y+z=6, x-y+z=2.

b)Unit 1

Find missing values in the given table.

Q.5
a)Unit 3

Use Runge-Kutta method to approximate y at x=0.1,0.2, given y=1 at x=0 and dy/dx=x+y.

b)Unit 3

Use Milne's method to solve dy/dx=x+y with y(0)=1 from x=0.20 to x=0.30.

Q.6
a)Unit 1

Find the value of f(5) from the given table using interpolation.

b)Unit 1

Find the real root of x log₁₀ x - 1.2 = 0 correct to five decimal places by Regula Falsi Method.

Q.7
a)Unit 4

Find the inverse Laplace transform of (2s+1)/[s(s-1)].

b)Unit 4

State convolution theorem and evaluate L⁻¹[s/{(s²+1)(s²+4)}].

Q.8
a)Unit 5

A binomial variable X satisfies 9P(X=4)=P(X=2) when n=6. Find p and P(X=1).

b)Unit 5

Find the percentage of measurements between 54.8" and 68.8" for N(65.5, 6.2²).