Home ยป Past Questions ยป Mathematics ยป Jamb ยป 2019
1

Evaluate \(\frac{2\sin 30 + 5\tan 60}{\sin 60}\), leaving your answer in surd form.

  • A. \(\frac{2\sqrt{3}}{3} + 10\)
  • B. \(\frac{3\sqrt{2} - 1}{5}\)
  • C. \(\frac{3\sqrt{2} + 1}{5}\)
  • D. \(\frac{2\sqrt{3}}{3} - 10\)
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2

If \(\sin x = \frac{4}{5}\), find \(\frac{1 + \cot^2 x}{\csc^2 x – 1}\).

  • A. \(\frac{13}{2}\)
  • B. \(\frac{25}{9}\)
  • C. \(\frac{3}{13}\)
  • D. \(\frac{4}{11}\)
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3

Calculate the volume of the regular three dimensional figure drawn above, where < ABC = 90ยฐ (a right- angled triangle).

  • A. 394 cm\(^3\)
  • B. 425 cm\(^3\)
  • C. 268 cm\(^3\)
  • D. 540 cm\(^3\)
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4

In the circle above, with centre O and radius 7 cm. Find the length of the arc AB, when < AOB = 57ยฐ.

  • A. 5.32 cm
  • B. 4.39 cm
  • C. 7.33 cm
  • D. 6.97 cm
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5

The histogram above represents the number of candidates who did Further Mathematics examination in a school. How many candidates scored more than 40?

  • A. 100
  • B. 79
  • C. 150
  • D. 90
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6
Marks 1 2 3 4 5
Frequency 2y – 2 y – 1 3y – 4 3 – y 6 – 2y

The table above is the distribution of data with mean equals to 3. Find the value of y.

  • A. 5
  • B. 2
  • C. 3
  • D. 6
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7

Find the equation of a line perpendicular to the line 4y = 7x + 3 which passes through (-3, 1)

  • A. 7y + 4x + 5 = 0
  • B. 7y - 4x - 5 = 0
  • C. 3y - 5x + 2 = 0
  • D. 3y + 5x - 2 = 0
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8

Find the distance between the points C(2, 2) and D(5, 6).

  • A. 13 units
  • B. 7 units
  • C. 12 units
  • D. 5 units
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9

Differentiate \(\frac{2x}{\sin x}\) with respect to x.

  • A. \(2 \cot x \sec x (1 + \tan x)\)
  • B. \(2 \csc x - x \cot x\)
  • C. \(2x \csc x + \tan x\)
  • D. \(2\csc x(1 - x\cot x)\)
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10

If y = 8x\(^3\) – 3x\(^2\) + 7x – 1, find \(\frac{\mathrm d^2 y}{\mathrm d x^2}\).

  • A. 48x - 6
  • B. 11x\(^2\) + 6x - 7
  • C. 32x + 7
  • D. 24x\(^2\) - 6x + 7
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11

Given the matrix \(A = \begin{vmatrix} 3 & -2 \\ 1 & 6 \end{vmatrix}\). Find the inverse of matrix A.

  • A. \(\begin{vmatrix} 6 & 2 \\ 1 & 6 \end{vmatrix}\)
  • B. \(\begin{vmatrix} \frac{2}{11} & \frac{1}{12}\\ \frac{3}{20} & \frac{1}{10} \end{vmatrix}\)
  • C. \(\begin{vmatrix} -3 & 2 \\ -1 & -6 \end{vmatrix}\)
  • D. \(\begin{vmatrix} \frac{3}{10} & \frac{1}{10} \\ \frac{-1}{20} & \frac{3}{20}\end{vmatrix}\)
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12

If \(\begin{vmatrix} 2 & -5 & 3 \\ x & 1 & 4 \\ 0 & 3 & 2 \end{vmatrix} = 132\), find the value of x.

  • A. 5
  • B. 8
  • C. 6
  • D. 3
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13

If 2x\(^2\) + x – 3 divides x – 2, find the remainder.

  • A. 7
  • B. 3
  • C. 5
  • D. 6
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14

Find the polynomial if given q(x) = x\(^2\) – x – 5, d(x) = 3x – 1 and r(x) = 7.

  • A. 3x\(^3\) - 4x\(^2\) - 14x + 12
  • B. 3x\(^2\) + 3x - 7
  • C. 3x\(^3\) + 4x\(^2\) + 14x - 12
  • D. 3x\(^2\) - 3x + 4
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15

Determine the values for which \(x^2 – 7x + 10 \leq 0\)

  • A. 2 \(\leq\) x \(\geq\) 5
  • B. -2 \(\leq\) x \(\leq\) 3
  • C. -2 \(\leq\) x \(\geq\) 3
  • D. 2 \(\leq\) x \(\leq\) 5
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16

Find the value of x for \(\frac{2 + 2x}{3} – 2 \geq \frac{4x – 6}{5}\)

  • A. x \(\geq\) -5
  • B. x \(\geq\) -1
  • C. x \(\leq\) -1
  • D. x \(\leq\) 3
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17

Evaluate \(\frac{2\log_{3} 9 \times \log_{3} 81^{-2}}{\log_{5} 625}\)

  • A. 4
  • B. -32
  • C. -8
  • D. 16
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18

Find the value of k in the equation: \(\sqrt{28} + \sqrt{112} – \sqrt{k} = \sqrt{175}\)

  • A. \(\sqrt{28}\)
  • B. 7
  • C. 28
  • D. \(\sqrt{7}\)
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19

In a committee of 5, which must be selected from 4 males and 3 females. In how many ways can the members be chosen if it were to include 2 females?

  • A. 144 ways
  • B. 15 ways
  • C. 185 ways
  • D. 12 ways
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20

If the universal set ฮผ = {x : 1 โ‰ค x โ‰ค 20} and
A = {y : multiple of 3}
B = |z : odd numbers}
Find A โˆฉ B

  • A. {1, 3, 6}
  • B. {3, 5, 9, 12}
  • C. {3, 9, 15}
  • D. {2, 3, 9}
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21

If the 3rd and 7th terms of a G.P are 9 and 1/9 respectively. Find the common ratio.

  • A. \(\frac{1}{3}\)
  • B. \(\frac{1}{9}\)
  • C. \(\frac{2}{3}\)
  • D. \(\frac{2}{9}\)
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