Skip to content
Previous Year Question Paper

BT-401 (GS) – Mathematics-III

June 2023CSITSEMESTER-4
June 2023
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 the equation x³ - 3x - 5 = 0 correct to four places of decimals by Newton Raphson method.

b)Unit 1

Evaluate Δ⁶(ax-1)(bx²-1)(cx³-1); h=1.

Q.2
a)Unit 1

Using Newton's divided difference formula, find f(8) and f(15) from the given table.

b)Unit 1

Find the real root of the equation xe^x - 3 = 0 correct to three decimal places by Regula Falsi method.

Q.3
a)Unit 2

Use Simpson's 1/3 and 3/8 rule to evaluate ∫₀¹ dx/(1+x²). Hence obtain the approximate value of π.

b)Unit 2

Compute the value of ∫₀·₂¹·⁴ (sin x - log_e x + e^x) dx by trapezoidal rule.

Q.4
a)Unit 2

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

b)Unit 2

Use Simpson's rule to find approximate value of ∫₁² dx/x.

Q.5
a)Unit 3

Use Euler's method compute the solution of dy/dx = y² - x² with y(0)=1 at x=0.1.

b)Unit 3

Use Euler's Modified method to solve dy/dx = x + y, y(0)=1, h=0.2 compute y(1).

Q.6
a)Unit 4

Use Laplace transform to solve the IVP: y' + 2y = 26 sin 3t, y(0) = 3.

b)Unit 4

Evaluate L(t cos at).

Q.7
a)Unit 4

Evaluate L⁻¹[1/(1+s)³].

b)Unit 4

Evaluate L{t² e^(-3t)}.

Q.8
a)Unit 5

Find mean of Poisson distribution.

b)Unit 5

Write Short note on Exponential Distribution.