Mathematics

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Q. For the function f(x) = -x^2 + 4x + 1, find the maximum value. (2023)
  • A. 1
  • B. 5
  • C. 7
  • D. 9
Q. For the function f(x) = 3x^2 - 12x + 7, find the coordinates of the minimum point. (2019)
  • A. (2, -5)
  • B. (2, -1)
  • C. (4, 1)
  • D. (4, -5)
Q. For the function f(x) = e^x, what is f''(x)? (2021)
  • A. e^x
  • B. xe^x
  • C. 0
  • D. 1
Q. For the function f(x) = sin(x) + cos(x), what is f'(π/4)? (2023)
  • A. 0
  • B. √2
  • C. 1
  • D. √2/2
Q. For the function f(x) = sin(x), what is f'(π/2)? (2021)
  • A. 0
  • B. 1
  • C. -1
  • D. undefined
Q. For the function f(x) = x^2 - 6x + 10, what is the minimum value? (2020)
  • A. 2
  • B. 3
  • C. 4
  • D. 5
Q. For the function f(x) = x^3 - 3x + 2, find the points of discontinuity.
  • A. None
  • B. x = 1
  • C. x = -1
  • D. x = 2
Q. For the function f(x) = { 2x + 1, x < 1; 3, x = 1; x^2, x > 1 }, is f(x) continuous at x = 1?
  • A. Yes
  • B. No
  • C. Only left continuous
  • D. Only right continuous
Q. For the function f(x) = { x^2, x < 0; 0, x = 0; x + 1, x > 0 }, is f(x) continuous at x = 0?
  • A. Yes
  • B. No
  • C. Only left continuous
  • D. Only right continuous
Q. For the function f(x) = { x^2, x < 2; 4, x = 2; 2x, x > 2 }, is f(x) continuous at x = 2?
  • A. Yes
  • B. No
  • C. Only left continuous
  • D. Only right continuous
Q. For the function f(x) = { x^2, x < 3; 9, x = 3; x + 3, x > 3 }, is f(x) continuous at x = 3?
  • A. Yes
  • B. No
  • C. Only left continuous
  • D. Only right continuous
Q. For the matrix D = [[4, 2], [1, 3]], find the inverse of D. (2022)
  • A. [[3, -2], [-1, 4]]
  • B. [[3, 2], [-1, 4]]
  • C. [[3, -2], [1, 4]]
  • D. [[4, -2], [-1, 3]]
Q. For the matrix J = [[0, 1], [1, 0]], what is J^2?
  • A. [[1, 0], [0, 1]]
  • B. [[0, 1], [1, 0]]
  • C. [[0, 0], [0, 0]]
  • D. [[1, 1], [1, 1]]
Q. For the matrix J = [[1, 2, 3], [0, 1, 4], [5, 6, 0]], find the determinant. (2023)
  • A. -24
  • B. 24
  • C. 0
  • D. 12
Q. For the matrix \( F = \begin{pmatrix} 2 & 1 \\ 3 & 4 \end{pmatrix} \), what is the value of the determinant? (2021)
  • A. 5
  • B. 6
  • C. 7
  • D. 8
Q. For the parabola defined by the equation x^2 = -12y, what is the direction in which it opens?
  • A. Upwards
  • B. Downwards
  • C. Left
  • D. Right
Q. For the parabola defined by the equation x^2 = 16y, what is the distance from the vertex to the focus?
  • A. 2
  • B. 4
  • C. 8
  • D. 16
Q. For the parabola defined by the equation x^2 = 16y, what is the length of the latus rectum?
  • A. 4
  • B. 8
  • C. 16
  • D. 2
Q. For the parabola defined by the equation y = -x^2 + 4x - 3, what is the y-intercept?
  • A. -3
  • B. 0
  • C. 3
  • D. 4
Q. For the polynomial x^3 - 3x^2 + 3x - 1, what is the nature of its roots? (2020)
  • A. All real and distinct
  • B. All real and equal
  • C. One real and two complex
  • D. All complex
Q. For the polynomial x^3 - 3x^2 + 3x - 1, what is the value of the sum of the roots? (2019)
  • A. 1
  • B. 3
  • C. 0
  • D. 2
Q. For the polynomial x^3 - 3x^2 + 3x - 1, which of the following is true about its roots?
  • A. All roots are real
  • B. All roots are complex
  • C. One root is real
  • D. Two roots are real
Q. For the quadratic equation 2x^2 + 4x + 2 = 0, what is the value of the discriminant? (2020)
  • A. 0
  • B. 4
  • C. 8
  • D. 16
Q. For the quadratic equation 2x^2 + 4x + k = 0 to have equal roots, what should be the value of k? (2020)
  • A. -4
  • B. 0
  • C. 4
  • D. 8
Q. For the quadratic equation 2x^2 + 4x + k = 0 to have real and equal roots, what is the condition on k? (2020)
  • A. k < 0
  • B. k = 0
  • C. k = 8
  • D. k > 8
Q. For the quadratic equation 2x^2 + 4x + k = 0 to have real roots, what must be the condition on k? (2019)
  • A. k > 4
  • B. k < 4
  • C. k >= 4
  • D. k <= 4
Q. For the quadratic equation 2x^2 + 4x - 6 = 0, what is the value of the discriminant? (2020)
  • A. 16
  • B. 4
  • C. 0
  • D. 36
Q. For the quadratic equation 2x^2 - 4x + k = 0 to have equal roots, what must be the value of k? (2019)
  • A. 0
  • B. 2
  • C. 4
  • D. 8
Q. For the quadratic equation 5x^2 + 3x - 2 = 0, what is the value of the roots using the quadratic formula? (2023)
  • A. -1, 2/5
  • B. 1, -2/5
  • C. 2, -1/5
  • D. 0, -2
Q. For the quadratic equation x^2 + 2px + p^2 - 4 = 0, what condition must p satisfy for the roots to be real? (2023)
  • A. p > 2
  • B. p < 2
  • C. p = 2
  • D. p >= 2
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