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Engineering Mat...

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  • Question 1
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    The value of t so that [41] is an eigen vector of [342t] is ______

  • Question 2
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    A=[123142265]

    For the above-given matrix, which of the following statement is/are correct.

  • Question 3
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    The value of the contour integral in the complex plane

    z32z+3z2dz

    along the contour |z| = 3, taken counterclockwise is

  • Question 4
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    An ordinary six-faced die is thrown four times. Which of the given results is/are correct?

    (Ace represents the face side 1)

  • Question 5
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    Equation (α xy3 + y cos x) dx + (x2y2 + β sin x) dy = 0 is exact if

  • Question 6
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    The temperature in an auditorium is given by T = x2 + y2 – 2z2. A mosquito located at (2, 2, 1) in the auditorium desires to fly in such a direction that it will get warm as soon as possible. The direction, in which it must fly is

  • Question 7
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    The value(s) of the integral ππ|x|cosnxdx,n1 is (are)

  • Question 8
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    Consider a matrix A = uvT where  u=(21), v=(11).Note that vT denotes the transpose of v. The largest eigenvalue of A is ________.

  • Question 9
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    If the function defined by f(x) = 2x2 + 3x – m log x is monotonic decreasing function on the open interval (0, 1), then the maximum possible value of the parameter m is

  • Question 10
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    If u = x log xy where x3+y3+3xy=1, find du/dx

  • Question 11
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    Which of the following vector identities is / are always true?

  • Question 12
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    If y = f(x) satisfies the boundary value problem y’’ + 9y = 0, y (0) = 0, y(π/2) = √2, then y(π/4) is ______  

  • Question 13
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    In the Laurent expansion of f(z)=1(z1)(z2) valid in the region 1 < |z| < 2, the co-efficient of 1z2 is

  • Question 14
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    Given a vector  u=13(y3̂i+x3̂j+z3̂k)and n̂ as the unit normal vector to the surface of the hemisphere (x2 + y2 + z2 = 1; z ≥ 0), the value of integral (×u)n^dS evaluated on the curved surface of the hemisphere S is

  • Question 15
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    Let A=[101120002] and B = A3 – A2 – 4A + 5I, where I is the 3 × 3 identity matrix. The determinant of B is _______ (up to 1 decimal place).

  • Question 16
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    [45x56y6kz]

    For the given matrix, if x, y, z are in AP with a common difference d and the rank of the matrix is 2, then which of the following results is/are always correct?

  • Question 17
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    The boundary value problem y” + λy = 0, y’(0) = y’(π) = 0 will have non zero solutions if and only if the values of λ are

  • Question 18
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    In Taylor's series expansion of exp (x) + sin (x) about the point x = r, the coefficient of (x – π)2 is

  • Question 19
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    Consider the system of equations [132223446252][x1x2x3]=[1121] The value of x3 (round off to the nearest integer), is ______.

  • Question 20
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    If the following integral is evaluated using Cauchy’s Integral formula

    |z|=1ekzzdz where k is a real constant.

    Then the value of integral

    2π0ekcosθsin(ksinθ)dθ=

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