Major Competitive Exams

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Q. If the polynomial equation x^3 - 6x^2 + 11x - 6 = 0 has roots a, b, and c, what is the value of a + b + c? (2021)
  • A. 6
  • B. 11
  • C. 3
  • D. 0
Q. If the polynomial f(x) = x^3 - 3x^2 + 4 is evaluated at x = 1, what is the result?
  • A. 2
  • B. 0
  • C. 1
  • D. 4
Q. If the polynomial f(x) = x^3 - 6x^2 + 11x - 6 is factored, which of the following is one of its factors?
  • A. x - 1
  • B. x + 2
  • C. x - 3
  • D. x + 1
Q. If the polynomial f(x) = x^4 - 4x^3 + 6x^2 - 4x + 1 is evaluated at x = 1, what is the result?
  • A. 1
  • B. 0
  • C. 2
  • D. 3
Q. If the polynomial f(x) = x^4 - 4x^3 + 6x^2 - 4x + 1, what can be inferred about its symmetry?
  • A. It is symmetric about the y-axis.
  • B. It is symmetric about the x-axis.
  • C. It is symmetric about the origin.
  • D. It is symmetric about the line x = 1.
Q. If the polynomial g(x) = x^2 + bx + c has a double root, what can be inferred about its discriminant?
  • A. It is greater than zero.
  • B. It is less than zero.
  • C. It is equal to zero.
  • D. It can be any value.
Q. If the polynomial g(x) = x^2 + bx + c has roots -2 and 3, what is the value of b?
  • A. 1
  • B. -1
  • C. 5
  • D. -5
Q. If the polynomial P(x) = x^2 + bx + c has roots 3 and -2, what is the value of b?
  • A. 1
  • B. 5
  • C. -1
  • D. -5
Q. If the polynomial P(x) = x^2 - 5x + 6 has roots r1 and r2, what is the value of r1 + r2?
  • A. 5
  • B. -5
  • C. 6
  • D. -6
Q. If the polynomial P(x) = x^2 - 5x + 6 is factored, what are the roots of the polynomial?
  • A. 2 and 3
  • B. 1 and 6
  • C. 3 and 2
  • D. 0 and 5
Q. If the polynomial P(x) = x^2 - 5x + 6 is factored, what are the roots?
  • A. 2 and 3
  • B. 1 and 6
  • C. 3 and 2
  • D. 0 and 6
Q. If the polynomial P(x) = x^3 - 3x^2 + 4 has a local maximum at x = 1, what is the value of P(1)?
  • A. 2
  • B. 0
  • C. 1
  • D. 4
Q. If the polynomial P(x) = x^3 - 6x^2 + 11x - 6 has a root at x = 1, what is P(2)?
  • A. 0
  • B. 1
  • C. 2
  • D. 3
Q. If the population of a city increases by 10% every year, what will be the population after 2 years if the current population is 1000? (2021)
  • A. 1210
  • B. 1100
  • C. 1020
  • D. 1200
Q. If the population of a city is 1 million and it grows at a rate of 2% per year, what will be the population after one year? (2023)
  • A. 1.02 million
  • B. 1.05 million
  • C. 1.1 million
  • D. 1.1 million
Q. If the population of a country increases by 5% every year, what will be the population after 2 years if the current population is 100,000?
  • A. 110,250
  • B. 105,000
  • C. 120,000
  • D. 102,500
Q. If the population of a town increases by 10% every year, what will be the population after 2 years if the current population is 1000? (2021)
  • A. 1210
  • B. 1100
  • C. 1020
  • D. 1200
Q. If the position vector of a point is (5, 12), what is its distance from the origin?
  • A. 13
  • B. 12
  • C. 11
  • D. 10
Q. If the position vector of a point is given by r = (2t, 3t, 4t), what is the velocity vector?
  • A. (2, 3, 4)
  • B. (4, 6, 8)
  • C. (2t, 3t, 4t)
  • D. (0, 0, 0)
Q. If the position vector of a point P is (2, 3, 4), what is the distance from the origin to point P?
  • A. 5
  • B. 6
  • C. 7
  • D. 8
Q. If the position vector of a point P is (x, y, z) and the vector a = (1, 2, 3), what is the projection of P onto a?
  • A. (1, 2, 3)
  • B. (2, 4, 6)
  • C. (0, 0, 0)
  • D. (x, y, z)
Q. If the position vector of a point P is given by r = (2t, 3t, 4t), find the coordinates of P when t = 1.
  • A. (2, 3, 4)
  • B. (1, 1, 1)
  • C. (0, 0, 0)
  • D. (2, 4, 6)
Q. If the position vector of point P is (3, -2) and Q is (1, 4), what is the vector PQ?
  • A. (-2, 6)
  • B. (2, -6)
  • C. (4, -6)
  • D. (6, 2)
Q. If the position vector of point P is (3, 4) and Q is (1, 2), what is the vector PQ?
  • A. (2, 2)
  • B. (4, 6)
  • C. (2, 4)
  • D. (1, 1)
Q. If the position vector of point P is given by r = 2i + 3j + 4k, what is the distance from the origin to point P?
  • A. 5
  • B. 6
  • C. 7
  • D. 8
Q. If the position vector of point P is given by r = 2i + 3j + 4k, what is the x-coordinate of point P? (2020)
  • A. 2
  • B. 3
  • C. 4
  • D. 5
Q. If the position vector of point P is given by r = 2i + 3j + 4k, what is the x-component of r?
  • A. 2
  • B. 3
  • C. 4
  • D. 5
Q. If the position vector of point P is given by r = 3i + 4j, what is the distance of point P from the origin?
  • A. 5
  • B. 7
  • C. 4
  • D. 3
Q. If the potential at a point is 5 V and the electric field is 2 V/m, what is the distance from the reference point? (2023)
  • A. 2.5 m
  • B. 10 m
  • C. 7.5 m
  • D. 5 m
Q. If the potential difference across a capacitor is halved, what happens to the energy stored in the capacitor? (2019)
  • A. Halved
  • B. Doubled
  • C. Remains the same
  • D. Quadrupled
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