1

GATE CE 2015 Set 1

MCQ (Single Correct Answer)

+2

-0.6

Consider the following differential equation

$$x\left( {y\,dx + x\,dy} \right)\cos \left( {{y \over x}} \right)$$

$$\,\,\,\,\,\,\,\,\,\, = y\left( {x\,dy - y\,dx} \right)\sin \left( {{y \over x}} \right)$$

$$x\left( {y\,dx + x\,dy} \right)\cos \left( {{y \over x}} \right)$$

$$\,\,\,\,\,\,\,\,\,\, = y\left( {x\,dy - y\,dx} \right)\sin \left( {{y \over x}} \right)$$

Which of the following is the solution of the above equation ($$C$$ is an arbitrary constant)

2

GATE CE 2015 Set 1

MCQ (Single Correct Answer)

+2

-0.6

The integral $$\,\int_{{x_1}}^{{x_2}} {{x^2}dx\,\,} $$ with $${x_2} > {x_1} > 0$$ is evaluated analytically as well as numerically using a single application of the trapezoidal rule. If $${\rm I}$$ is the exact value of the integral obtained analytically and $$J$$ is the approximate value obtained using the trapezoidal rule, which of the following statements is correct about their relationship?

3

GATE CE 2015 Set 1

Numerical

+2

-0

The quadratic equation $${x^2} - 4x + 4 = 0$$ is to be solved numerically, starting with the initial guess $${x_0} = 3.$$ The Newton- Raphson method is applied once to get a new estimate and then the Secant method is applied once using in the initial guess and this new estimate. The estimated value of the root after the application of the Secant method is ________.

Your input ____

4

GATE CE 2015 Set 1

MCQ (Single Correct Answer)

+1

-0.3

Consider the following complex function $$f\left( z \right) = {9 \over {\left( {z - 1} \right)\left( {z + 2} \right)}}.$$ Which of the following is ONE of the residues of the above function ?

Paper analysis

Total Questions

Engineering Mathematics

8

Hydrology

1

Irrigation

1

Reinforced Cement Concrete

6

Steel Structures

1

Strength of Materials Or Solid Mechanics

3

Structural Analysis

4

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